the future of energy and advanced materialspips.phys.unpad.ac.id/docs/pips2019_abstract book.pdf2019...

0

PIPS 2019 pips.phys.unpad.ac.id

Padjadjaran International Physics Symposium

4 th

The Future of Energy and Advanced Materials

November 13 – 14, 2019

Bandung, Indonesia

ABSTRACT BOOK

1 4th Padjadjaran International Physics Symposium 2019

Preface

The 4th Padjadjaran Internasional Physics Symposium 2019 (4th-PIPS2019) is our fourth activities for gathering and discussing some research in physical sciences. The main theme of PIPS2019 is “The Future of Energy and Advanced Materials”. This symposium is organized by Department of Physics, Faculty of Mathematics and Natural Sciences, Padjadjaran University.

This symposium is aiming at enhancing and continuing communication among the researcher in physical sciences. About 133 papers are presented including Theoretical Physics, Material (magnetic, solar cell, biomass), Computational and Modeling in Physics, Electronics Instrumentation (control), Energy (renewable energy and storage), Geophysics (environmental, exploration), and Biophysics (molecules, cells, organisms, and ecosystems).

We would like to thanks to Rector of Padjadjaran University and Dean of Faculty of Mathematic and Natural Science who supported this symposium, and also for all Invited Speakers who kindly join to this symposium.

We would like to extend our special thanks to Prof. Alan Drew-Queen Mary University of London, United Kingdom, Prof. Furukawa Yujio-Waseda University Japan, Prof. Ariando. National University of Singapore, Dr. Isao Watanabe-RIKEN Japan, Prof. Pocky Chen-National Taiwan University of Science and Technology, Prof. Jeong Weon Wu-Ewha Womans University South Korea, and Prof. Mohd. Mustafa Awang Kechik-Universitas Putra Malaysia.

We hope during the symposium, we can share valuable research to improve communication between researchers, and develop research collaboration that can support and increase the quality of research in Indonesia.

Togar Saragi CHAIRMAN


Introduction

The Padjadjaran International Physics Symposium (PIPS) conference is an international event held every two years. This International conference is for promoting collaborative research program on physics studies under the collaboration between Indonesian researchers and some researchers from institutions/universities in Asia and Europe. Through this conference, we will continue to create the mutually collaborative research such as:

1. Development of collaborative research projects involving the use of the research facilities in Indonesia and other countries that can support and increase the quality of research in

Indonesia.

2. Developing a research cluster focusing on the functional materials science.

3. Increasing the number of researchers and graduate students exchange from more universities in Indonesia.

4. Enhancing joint supervision of Indonesian graduate students which is related to the research cluster theme.

In 2013, we arranged the 1st event for gathering between Indonesian and researcher from

other countries (May 7-8, 2013) held in Sumedang, “Contribution Physics on Environmental and Energy Conservation”. In 2015, we arranged the 2nd PIPS 2015, “Material Functionalization and Energy Conservation” in Sumedang (May 7-8, 2015). In 2017, we arranged the 3rd PIPS held in Bandung on November 14-15, 2017, “The Role of Physics in Sustainable Development”. We successfully gathered researchers from more than 14 universities and institutions in Asia and Europe For continuing in developing and promoting these research collaborations, we organized the 4th international conference with the title 4th Padjadjaran International Physics Symposium 2019 (4th PIPS 2019): “The Future of Energy and Advanced Materials” held in Bandung, Indonesia on November 13-14, 2019.


Scope

The topics of PIPS 2019 cover a wide range of research domains on physics and related, such

as:

(1) Theoretical Physics

(2) Advanced Material

(3) Computational and Modeling

(4) Instrumentation & Electronics

(5) Energy

(6) Geophysics

(7) Biophysics


Invited Speaker

Prof. Alan Drew (Queen Mary University of London, United Kingdom)

Prof. Ariando (National University of Singapore, Singapore)

Prof. Yukio Furukawa (Waseda University, Japan)

Prof. Poki Chen (National Taiwan University of Science and Technology, Taiwan)

Prof. J. W. Wu (Ewha Womans University, South Korea)

Dr. Isao Watanabe (RIKEN, Japan)

Mohd. Mustafa Awang Kechik, Ph.D (Universiti Putra Malaysia, Malaysia)

Dr. Togar Saragi (Universitas Padjadjaran, Indonesia)

Dr. Eng. Priastuti Wulandari (Institut Teknologi Bandung, Indonesia)

Dr. Lusi Safriani (Universitas Padjadjaran, Indonesia)

Dr. Budhy Kurniawan (Universitas Indonesia, Indonesia)

Dr. Dini Fitriani (Universitas Padjadjaran, Indonesia)

Dr. Bambang Mukti W. (Universitas Padjadjaran, Indonesia)

Dr. Alexander A. Iskandar (Institut Teknologi Bandung, Indonesia)

Dr. Irwan Ary Dharmawan (Universitas Padjadjaram, Indonesia)

Baskan Hanurajie, M.Eng. (National Nuclear Energy Agency, BATAN, Indonesia)

Organizing Commitee

Dr. Togar Saragi (Chair)

Dr. Nowo Riveli (Co-chair)

Prof. Dr. Camellia Panatarani

Dr. rer. nat. Ayi Bahtiar

Dra. Sri Suryaningsih, M.I.L.

Drs. Norman Syakir, M.Sc

Setianto, M.Si

Liu Kim Men, M.Si

Dr. Budi Adiperdana

Dr. Ferry Faizal

Yati M., S.Si


Program Day 1 – November 13, 2019

TIME ACTIVITIES

08.00 - 08.25 Registration

08.25 - 08.30 Welcoming Address/Opening Speech from Co-Chairman of The 4thPIPS

2019: Nowo Rivelli Ph.D

Plenary Session 1, Moderator: Dr.rer.nat. Ayi Bahtiar, S.Si., M.Si.

08.30 - 09.05 Plenary Speaker 1 : Mohd. Mustafa Awang Kechik (Universiti Putra

Malaysia)

09.05 - 09.40 Plenary Speaker 2 : Prof. Furukawa (Waseda University, Japan)

09.40 - 10.10 Coffee break

Plenary Session 2, Moderator: Prof. Dr. Risdiana, S.Si., M.Eng.

10.10 - 10.55 Keynote Speaker: Prof. Alan Drew (Queen Mary University of London,

United Kingdom)

10.55 - 11.05 Opening Ceremony

11.05 - 11.10 Chairman : Dr. Togar SARAGI

11.10 - 11.20 Rector of Unpad/Dean of Mathematics and Natural Sciences Faculty:

Represent by Vice Dean Dr. Iman Rahayu, M.Si

11.20 - 11.40 Art Performance: Indonesian Traditional Dance

11.40 - 12.00 -Photo session

12.00 - 13.30 Lunch Break

13.30 - 16.30 Parallel Session

Day 2 – November 14, 2019

TIME ACTIVITIES

08.00 – 9.30 Poster Session (Assesment)

Plenary Session 3, Moderator: Nowo Riveli, Ph.D

09.30 - 10.05 Plenary Speaker 3: Dr. Isao Watanabe (RIKEN, Japan)

10.05 – 10.20 Coffee Break

10.20 - 10.55 Plenary Speaker 4: Prof. J. W. Wu, (Ewha Womans University, South Korea)

10.55 - 11.30 Plenary Speaker 5 : Prof. Poki Chen (National Taiwan University of Science

and Technology, Taiwan)

Plenary Session 4, Moderator: Dr. Togar Saragi

11.30- 12.05 Keynote Speaker: Prof. Ariando (National University of Singapore,

Singapore)

12.05 - 13.00 Lunch Break

13.00 - 15.45 Parallel Session

15.45 - 16.00 Closing Ceremony


Oral Presentation Session Day 1 – November 13, 2019

TIME

ROOM A ROOM B ROOM C ROOM D ROOM E

Advanced Materials 1


Instrumentation and Electronics

Geophysics Computational and

Modelling Moderator:

Dr. Annisa Aprilia Moderator:

Nowo Riveli, Ph.D Moderator:

Dr. Andri Abdurrochman Moderator:

Ferry Faizal, Ph.D Moderator:

Dr. Budi Adiperdana

13.30 - 14.00 INV-1:

Dr. Togar Saragi INV-2 :

Dr. Lusi Safriani INV-3 :

Dr. Bambang Mukti W INV-4 :

Dr. Dini Fitriani, INV-5 :

Dr. Alexander Iskandar

14.00 - 14.15 AM-01 AM-10 IE-01 GP-01 CM-02

14.15 - 14.30 AM-02 AM-11 IE-02 GP-02 CM-03

14.30 - 14.45 AM-03 AM-12 IE-03 GP-03 CM-04

14.45 - 15.00 AM-04 AM-13 IE-04 GP-04 CM-05

15.00 - 15.15 AM-05 AM-14 IE-05 GP-05 CM-06

15.15 - 15.30 Coffee Break

15.30 - 15.45 AM-33 AM-15 IE-06 GP-06 CM-07

15.45 - 16.00 AM-07 AM-16 IE-07 GP-07 IE-10

16.00 - 16.15 AM-08 AM-17 IE-08 GP-08 AM-44

16.15 -16.30 AM-71 AM-18 IE-09 GP-09

Day 2 – November 14, 2019

ROOM A ROOM B ROOM C ROOM D ROOM E

TIME Advanced Materials 3


Advanced Material 5

Energy Geophysics &

Biophysics Moderator:

Norman Syakir, M.Sc Moderator:

Setianto, M.Si Moderator:

Dr. Sahrul Hidayat Moderator:

Ferry Faizal, Ph.D Moderator:

Dr. Budi Adiperdana

13.00 - 13.30 INV-6:

Dr. Priastuti Wulandari INV-7:

Dr. Budhy Kurniawan AM-35

INV-9: Baskan

Hanuradjie, M.Si

INV-10 : Dr. Irwan Ary Dharmawan

13.30 - 13.45 AM-19 AM-27 AM-36 IE-11 GP-10

13.45 - 14.00 AM-20 AM-28 AM-37 EP-01 GP-11

14.00 - 14.15 AM-21 AM-29 AM-09 EP-02 GP-12

14.15 - 14.30 AM-22 AM-30 AM-39 EP-03 BP-01

14.30 - 14.45 AM-23 AM-31 AM-40 EP-04 BP-02

14.45 - 15.00 AM-24 AM-32 AM-41 EP-05 BP-03

15.00 - 15.15 Coffee break

15.15 - 15.30 AM-25 AM-06 AM-42 EP-06 CM-08

15.30 - 15.45 AM-26 AM-34 AM-43 CM-01 AM-45

15.45 - 16.00 Closing Ceremony NOTE: AM; Advanced Materials CM: Computational and Modelling IE: Instrumentation and Electronics EP: Energy GP: Geophysics BP: Biophysics


List of Contributed Speaker Invited Speakers

No. Code Name Institution Title Page

1 INV-01 A. J. Drew Queen Mary University of London

Black is the new green – making carbon battery anodes from biowaste

24

2 INV-02 Ariando National University of Singapore

Room-temperature colossal magnetoresistance in terraced single-layer graphene

25

3 INV-03 Y. Furukawa Waseda University

Inorganic–Organic Hybrid Perovskite Solar Cells Fabricated with Additives

26

5 INV-05 Jeong Weon Wu Ewha Womans University

Photo-physical Properties Controlled by Hyperbolic Metamaterials and Epsilon-Near-Zero Organic Films

28

6 INV-06 Isao Watanabe RIKEN Multi-Angle Approach to Magnetic Properties of Nano-State La2-xSrxCuO4

29

7 INV-07 M. M. Awang Kechik

Universiti Putra Malaysia

Optimization of superconducting properties of YBa2Cu3O7−δ films grown by pulsed laser deposition

30

8 INV-08 Togar Saragi Universitas Padjadjaran

Nanofluids of Iron oxide Fe3O4: A Study of Colloid Stability in Various Medium Dispersed

31

9 INV-09 Priastuti Wulandari

Institut Teknologi Bandung

Synthesis and Characterization of Gold and Silver Nanoparticles and Its Application for Photovoltaic Devices

32

10 INV-10 Lusi Safriani Universitas Padjadjaran

The Addition of Reduced Graphene Oxide Layer to TiO2 Photoanode of DSSC using UV-oven Spraying Method

33

11 INV-11 Budhy Kurniawan Universitas Indonesia

Novel electric and magnetic properties in La0.7(Ba0.97Ca0.03) 0.3Mn1-xCuxO3

34

12 INV-11 Dini Fitriani Universitas Padjadjaran

Magnetic parameters analysis as proxy indicators in environmental assessment

35


13 INV-12 Bambang Mukti Wibawa

Universitas Padjadjaran

Dimming Control Effect in Visible Light Communication

36

14 INV-13

Alexander A.

Iskandar


Design of Cylindrical Nanoshells for Optical Device Applications

37

15 INV-14 Irwan Ary Dharmawan


Free Energy Lattice Boltzmann Method for multicomponent flow with high viscosity ratio

39

16 INV-15 Baskan Hanurajie

Center for Nuclear Standardization and Quality

The Role of National Nuclear Energy Agency in the Development of Industrial Radiography: A Review.

40

Advanced Material (AM)


1 AM-01 Achmad Subhan

Pusat Penelitian Fisika,Lembaga Ilmu Pengetahuan Indonesia

Structure and electrochemical performance of Li(Mn2-x-yNixAly)O4 synthesized with minimum Ni and Ni/Al dual-doping

42

2 AM-02 Bathara Bhisma Arbianto

Universitas Indonesia

The influence of Cu Subtitution on the Structure of Ca0.9La0.05Bi0.05Mn1-XCuxO3 ( X = 0, 0.025, 0.05, 0.075, and 0.1) Manganites

43

3 AM-03 Dhawud Sabilur razaq

universitas indonesia

Structure and morphology properties of nanosized La0.75K0.05Ba0.05Sr0.15MnO3 manganites

44

4 AM-04 Esmar Budi Universitas Negeri Jakarta

Electrodepositing Ni-TiN/Si3N4 Composite Layer in Varying Current Density

45

5 AM-05 Hafizhah Ellora Della

Institut Teknologi Sepuluh Nopember

Mechanical Influence of Milling on the Electrical Conductivity of LiFeSi0.03P0.97O4/C Chatode Composite Materials

46

6 AM-06 Muhammad Abdan Syakuur


The Dependence of Magnetic Moments on Magnetic Impurities of Ni in

47


Eu1.86Ce0.14Cu1-yNiyO4

7 AM-07 Nanang Sudrajat

Research Center for Electronics and Telecommunications - Indonesian Institute of Science

The influence of Dy Substitution on Increasing Coercivity of Pr20-xDyxFe72B8 (x= 0;1.0; 2.0;3.0 and 5.0) Permanent Magnet

48

8 AM-08 Trisna Ardi Wiradinata

Tokai University

Improvement Drawability of Advanced Aluminum Alloy Wire by Using Cryogenic Drawing Method

49

9 AM-09 Yuyu Rachmat Tayubi

UNIVERSITAS PENDIDIKAN INDONESIA

Study of Purity, Electron Mobility and Magnetic Properties of Eu1.91Ce0.09CO4 and Eu1.84Ce0.16CuO4

50

10 AM-10 Herlin Pujiarti Institut Teknologi Bandung

Effect of lead-free perovskite Cs2SnI6 addition in the structure of dye sensitized solar cell

51

11 AM-11 Ayi Bahtiar Universitas Padjadjaran

Improved the Performance and Stability at High Humidity of Perovskite Solar Cells by Mixed Cesium—Metylammonium Cations

52-53

12 AM-12 Nur Ajrina Putri University of Indonesia

ZnO Thin Films Prepared by Ultrasonic Spray Pyrolysis Method for High Performance Metal Oxides-based Photoconductors

54

13 AM-13 Nur Fadhilah Syarif


Photovoltaic Characterization of Hybrid Bulk Heterojunction Solar Cell Incorporated Gold Nanoparticles Embedded in Active Polymer Layer

55

14 AM-14 Rany Khaeroni Institut Teknologi Bandung

Performance of Air-stable Cs2Snl6 Perovskite as Electron Transport Layer in Inverted Bulk Heterojunction Solar Cell

56

15 AM-15 Romi Fadli Syahputra

Universitas Riau

Palladium Role in Growth of ZnO Nanostructure With Plasmonics Layering by Seed Mediated Hydrothermal Method

57


16 AM-16 Yohan Sutanto Universitas Indonesia

Morphological effect of ZnO nanostructures in ultraviolet photoconductors application

58

17 AM-17 Sahrul Hidayat Universitas Padjadjaran

Synthesis of Carboxymethyl Cellulose Form Banana Stems and Its Characterization for Anode Binder of Li-Ion Battery

59

18 AM-18 Diyan Unmu Dzujah


Performance of Rolled Supercapacitor Device Model Using Carbon-Sheet Electrodes in KCl Electrolyte System

60

19 AM-19 Anna Zakiyatul Laila


The Electronic Properties of Nitrogen and Boron Doped Amorphous Carbon (a-C:N and a-C:B) from Bio-product

61

20 AM-20 Cahyaning Fajar Kresna Murti


Particle Size Analysis of the Synthesized Al2O3 by Dissolution and Alkali Fusion-Coprecipitation Methods

62

21 AM-21 Darmawan Hidayat


Metal-polymer composite as an acoustic attenuating material for ultrasonic transducers

63

22 AM-22 Diky Anggoro Institut Teknologi Sepuluh Nopember

Carbon Nanofiber Form by Electrospinning With Flowrate Variations as Electrodes For Capasitive Deionization

64

23 AM-23 Djoko Hadi Prajitno

Research Center For Nuvlear Science and

Corrosion study of ternary Zr-Sn-X(Y,Nb) Alloys for nuclear fuel element in Nanofluid

65

24 AM-24 Iim Fatimah Institut Teknologi Sepuluh Nopember

EFFECT OF CONCENTRATION AND NOZZLE – COLLEVTOR DISTANCE ON MORPHOLOGY OF NANOFIBERS

66

25 AM-25 Linda Silvia

Institut Teknologi Sepuluh Nopember Surabaya

The Effect Of Variation Concentration Sodium Hydroxide (NaOH) On The Structure Of Calcium Carbonate (CaCO3) Based On Natural Sand

67


26 AM-26 Melanie melanie


Nanoemulsion of Ethyl Acetate Lantana camara Fractionation by Emulsion Phase Inversion Method : The Preparation & Biological Properties

68

27 AM-27 Mochammad Alfin Naufal Nur


Effect of Ni Substitution to Structure and Morphology of Ca0.9La0.05Bi0.05Mn1-xNixO3 by Sol-gel Method

70

28 AM-28 Dicky Rezky Munazat


Effect of different synthesis methods on structural and magnetic properties of La0.7Ba0.25Nd0.05MnO3

71

29 AM-29 Ikhwan Nur Rahman


Structural and Morphological La0.85-xBaxNa0.15MnO3 (x = 0, 0.05 and 0.10) Perovskite Manganites

72

30 AM-30 Rasmianti Institut Teknologi Sepuluh November

Analysis Of Barium Titanate Perovskite On The Effect Of Anil Resistant Time On Crystal Structure And Gap Energy

73

31 AM-31 Rayhan Faiz Syahrizal


Structure and Morphology of Copper Subtituted Of La0,667Ba0,333Mn1-xCuxO3 (x = 0,35 and 0,40)

74

32 AM-32 Sigit Dwi Yudanto


Influence of Stoichiometric on the Phase Formation and Electrical Properties of β-FeSe Prepared by Mechanical Alloying

75

33 AM-33 Utami Widyaiswari


Synthesis of Nd2Ru2O7 Polycrystal and Their Magnetic Properties Studied by muSR

76

34 AM-34 Mochamad zainuri

Institut teknologi Sepuluh Nopember Surabaya

ANALYSIS OF STRUCTURE AND ABSORPTION ELECTROMAGNETIC WAVES IN X-BAND RANGE USING BARIUM M-HEXSAFERRITE DOPPING ZN IONS AND POLYANILIN CONDUCTIVE WITH VARIATION OF THICKNESS COATING

77


35 AM-35 Iman Rahayu universitas Padjadjaran

The Effect of Gadolinium Ion Doping on Electronic Conductivity of LiFePO4/C

78

36 AM-36 Irma Septi Ardiani

Institut Teknologi Sepuluh Nopember (ITS)

Structural Analysis of Boron- and Nitrogen-doped Amorphous Carbon Thin Films from Bio-product

79

37 AM-37 Khoirotun Nadiyyah

Institut Teknologi Sepuluh Nopember (ITS)

Electrical Characterization of N- and B- Doped Amorphous Carbon Thin Film from Bio-Product

80

39 AM-39 Vika Marcelina Institut Teknologi Bandung

The Intensity Effect to Reduced Graphene Oxides (RGO) Thin Films Structure on Cu Plates using UV Oven Spraying Deposition Technique

81

40 AM-40 Yuni Kurniati

Universitas Internasional Semen Indonesia (UISI)

Synthesis of Solid Acid Catalyst From Banana Peel Waste by Sulfonation Method

82

41 AM-41 Yusmaniar Universitas Negeri Jakarta

Carbon Extraction from Rice Husk and its Application as a Microwave Adsorbent

83

42 AM-42 Otong Nurhilal Universitas Padjadjaran

Synthesis of High Quality Porous Carbon from Water Hyacinth

84

43 AM-43 Qolby sabrina Indonesian Institute of Science

Contribution Succinonitrile additive for Performa Solid Polymer Electrolytes Li-Ion Battery

85

44 AM-44 Azhari Yusuf Universitas Padjadjaran

The Effect of Temperature Synthesis on the Purity and Crystallinity of Hydroxyapatite

86

45 AM-45 Putri Nadia Suryadi

Padjadjaran University

Fabrication of Reduced Graphene Oxide Films on Copper Foam (rGO/CF) as Electrode of Supercapacitor

87

46 AM-46 Diky Anggoro Institut Teknologi Sepuluh Nopember

The Influence of Electrospun Electrostatic Voltage on the formation of Nanofiber Based on High Voltage Flyback

88

47 AM-47 Iim Fatimah Institut Teknologi Sepuluh Nopember

HUMIDITY CONTROL ON CARBON NANOFIBER FABRICATION BASED ON

89


ELECTROSPINNING

48 AM-48 Camellia Panatarani


Preparation and Characterization of Powder and Suspension of Cu2ZnSn(S,Sc)2 by Beads Milling Method

90

49 AM-49 Atiek Rostika Noviyanti


Conductivity of Lanthanum Silicate Apatite Derived from Rice Husk

91

50 AM-50 Della Maharani Universitas Indonesia

Effect of Solution Treatment on Microstructure and Mechanical Properties of Ti-6Al-7Nb Alloy

92

51 AM-51 Destri Wirani Universitas Indonesia

Fabrication of Pure Magnesium Disk by Spark Plasma Sintering

93

52 AM-52 Diana Rakhmawaty Eddy


Synthesis of Gadolinium Citrate Encapsulation in Silica Nanoparticles as Contrast for Detecting Cancer

94

53 AM-53 Dyah Hikmawati Universitas Airlangga

The Effect of Ultraviolet Exposure on Physical Characteristics of Electrospun Polyvinyl Alcohol-Aloe vera Nanofiber Membrane

95

54 AM-54 Efrina Hidayati Universitas Indonesia

Characterization of Microstructure and Mechanical Hardness of Plasma Electrolytic Oxide Film Formed on AZ31 Mg Alloy

96

55 AM-55 Elsayu Dina Universitas Padjadjaran

Fabrication and Characterization Dye Sensitized Solar Cells (DSSC) Using Spiro-OMeTAD as Hole Transport Material

97

56 AM-56 Engela Evy Ernawati


The Effect of Lampung Natural Zeolite and Heating Process on Membrane Acetate Cellulose of Ramie Fiber on The Performance of CO2/CH4 Gas Separation

98

58 AM-58 Idha Royani Universitas Sriwijaya

Temperature in the Extraction Process: The Number of Cavities Created

99


in Polymer Based on Molecularly Imprinted Polymer (MIP) Caffeine

59 AM-59 Setianto Universitas Padjadjaran

Morphology of Micro-porous Membrane of Waste Cigarette Butts using Phase Inversion Method

100

60 AM-60 Norman Syakir Universitas Padjadjaran

Rolled Model Prototipe of Supercapacitor based on Reduced Graphene Oxyde Films deposited on Copper Sheets as Current Collector

101

61 AM-61 Pelangi Azzahra


Active Material LiFeSixP1-xO4/C as High‐Performance Cathodes for Lithium‐Ion Batteries

102

62 AM-62 Siswanto Universitas Airlangga

Synthesis of Cordieritte Ceramic Glass (Mg2Al4Si5O18) Based on Natural Materials For High Voltage Electrical Insulator Application

103

63 AM-63 Soni Setiadji Universitas Padjadjaran

Synthesis of Polydimethylsiloxane and Its Monomer from Hydrolysis of Dichlorodimethylsilane

104

64 AM-64 Sri Rahmadani Universitas Indonesia

Fabrication of Hydroxyapatite Coating on CP-Ti by Electrophoretic Deposition Technique

105

65 AM-65 Suci Winarsih RIKEN

Inter-grain Resistivity of La2-xSrxCuO4 Nanoparticles Evaluated by Four Point Probe Method

106

66 AM-66 Titis Amelia Universitas Padjadjaran

Study In-situ Oxygen Reduction of Deposited Graphene Oxide Films using UV Oven Spraying Method

107

67 AM-67 Yuli Andriani Universitas Padjadjaran

The Effect of Fermentation Process on Physical Properties of Organic Material from Domestic Food Waste

108

68 AM-68 Yusi Deawati Universitas Padjadjaran

Hydrogen Peroxide Scavenging Activities of Manganese(III)-salen Acetate and Chloride

109


69 AM-69 Adri Supardi Universitas Airlangga

Synthesis and Characterization of Zn-Mg Alloy as Biodegradable Materials

110

70 AM-70 Iis Nurhasanah Diponegoro University

Feasibility of Nanoceria as Adsorbent for Amoxicillin Removal from Water

111

71 AM-71 Dita Puspita Sari Shibaura Institute of Technology

Anisotropy of Lower Critical Field in Organic Layered Superconductor lambda-(BETS)2GaCl4

112

72 AM-72 Annisa Aprilia Universitas Padjadjaran

Low Temperature Processing of ZnO nanopowder and Its Photocatalytic Properties

113

Computational and Modelling (CM)


1 CM-01 Andri Abdurrochman


The Experimental Questing Dimension and Material of Microsphere for Photonic Jet Microscopy

115

2 CM-02 Lusia Silfia Pulo Boli


The Usage Of DFT Coupled With Vibrational Mode Calculation On Constructing Isomerization Of Cyclopropene To Propyne

116

3 CM-03 Rizka Nur Fadilla Institut Teknologi Bandung

A First-principles Study On The Quantum Tunneling Of Methlhydroxycarbene Isomerization In Various Solvents

117

4 CM-04 Rizky Mochamad Fauzi


Free Energy Lattice Boltzmann Method for Immiscible Fluid Displacement with High Viscosity Ratio

118

5 CM-05 Setianto Universitas Padjadjaran

Morphology of Micro-porous Membrane of Waste Cigarette Butts using Phase Inversion

119


Method

6 CM-06 Syarip Syarip National Nuclear Energy Agency

Analysis of undesired event that leads to the initiation of early warning system of Kartini reactor

120

7 CM-07 Taufik Ibnu Salim


Simulation of Trajectory Tracking Generator and Control for Two-Wheel Weeder Robot

121

8 CM-08 Mauludi Ariesto Pamungkas

Universitas Brawijaya

Effects of Boron Nitrride (BN) on The Optical Propeties of Silicene: Density Functional Theory Calculations

122

10 CM-10 Muhammad Redo Ramadhan


Spin Alignment Studies on the Muon-Site Determination in La2CuO4

123

11 CM-11 Pina Pitriana UIN Sunan Gunung Djati Bandung

First Principle Calculation of Lead-Free Inorganic Perovskite ASnI3 using Density Functional Theory (DFT)

124

12 CM-12 Saidah Sakinah Mohd Tajudin

Universiti Sains Malaysia

Basis Set Effects in Density Functional Theory Calculation of Muoniated Cytosine Nucleobase

125

13 CM-13 Saidah Sakinah Mohd Tajudin

Universiti Sains Malaysia

Functional Effects in Density Functional Theory Calculation of Au13(SR)n nanocluster

128

14 CM-14 Budi Adiperdana Universitas Padjadjaran

The Effect of Interaction Distribution on Dipole Field Calculations in Reconstructing the La2CuO4 μSR Spectrum

129


Instrumentation & Electronics (IE)


1 IE-01 Budi Purwanto

Center for Research and Development of Quality and Environmental Laboratory

The Difference Between Several Methods Of Sound Power Level For Determining The Sound Energy Emitted By A Sound Source

129

2 IE-02 Dodi Rusjadi TE Badan Standardisasi Nasional

The Traceability of Acoustics Measurement in Indonesia Nowadays

130

3 IE-03 Dudi Adi Firmansyah

Akademi Metrologi dan Instrumentasi

Simple Measurement Instrument of Moisture Content for Indonesia Coffee Powder Based on Capacitive Sensor

131

4 IE-04 Fajar Budi Utomo

BSN

One-Cycle Controller for DC Motor Driver on Low Frequency Exciter Vibration Calibrator

132

5 IE-05 Ferry Faizal Dept. of Physics Unpad

Development of high precision pump and high voltage DC regulator for electrospinning apparatus

133

6 IE-06 Muhtadan

Polytechnic Institute of Nuclear Technology

Design of IoT-based Data Acquisition System for Operation and Safety Parameter of Kartini Reactor

134

7 IE-07 Mery Astuti Universitas Indonesia

Gamma Ray Dosimeter Using Ag-Tragacanth Gel

135

8 IE-08 Mohamad Nur Yahya

Badan Tenaga Nuklir Nasional

Enhancing Effectiveness of Extraction Radiocesium from Seawater Using Hexacyanoferrates Filter

136

9 IE-09 Okasatria Novyanto

Badan Standardisasi Nasional

Measurement Optimization of High Accuracy Check Master Based on Interferometry Method in National Standardization Agency of Indonesia: A Preliminary Study for Measuring Range of 10 mm to 400 mm

137


10 IE-10 Rendra Dwi Firmansyah

Indonesian Institute of Sciences

Room Monitoring System using Wireless Sensor Network (WSN) for Smart Building application

138

11 IE-11 Salma Muflihah Universitas Indonesia

The D-Mannitol/Silver Ion Liquid for Gamma Ray Dosimetry

139

12 IE-12 Khairul Saleh Universitas Sriwijaya

Instrumentation characteristics of biosensors for water level measurement

140

13 IE-13 Darmawan Hidayat


Determination of generated ultrasonic wave characteristics by a bipolar square burst excitation

141

14 IE-14 Taufik Ibnu Salim Institut Teknologi Bandung

Network Quality Monitoring for Smart Agriculture based on Wireless Single Link Control

142

15 IE-15 Erry Koriyanti Universitas Sriwijaya

Galvanic Cell Design with Arduino Uno Microcontroller Using Melamine MIP as A Sensor Membrane

143

Energy (EP)


1 EP-01 Bartolomeus Delphito Nugraha

Universitas Gadjah Mada

Analysis of Mo-99 Production as Function of CAMOLYP Reactor Power Levels

145

2 EP-02 Cukup Mulyana Universitas Padjadjaran

UTILIZATION OF SILICA SCALING WASTE FROM DIENG GEOTHERMAL POWER PLANT IS SEEN FROM THE THERMAL AND PIEZOELECTRIC PROPERTIES

146

3 EP-03 Fiber Monado Universitas Sriwijaya

Comparative Study of Conceptual Design of Gas-cooled Fast Reactor Core Type Tall versus Pan Cake Based on MCANDLE-B Burn up Strategy

147

4 EP-04 Ikhsan Setiawan Universitas Gadjah Mada

Testing of a Three-Stage Looped-Tube Thermoacoustic Sound Generator

148


5 EP-05 Irwan Purnama Indonesian Institute of Sciences

Study on Performance Characteristics of Thermoelectric Generator String

149

6 EP-06 Triwikantoro


Failure Analysis of Installation of Biogas Production in an Open Environment

150

7 EP-07 Menik Ariani Universitas Sriwijaya

Optimized core design for small long-life gas cooled fast reactors with natural uranium-thorium-blend as fuel cycle input

151

8 EP-08 Dwindra Wilham Maulana


Gravitational Water Vortex Pico Hydro Power Modelling For Aquaculture Implementation

152

Geophysics (GP)


1 GP-01 Aditya Dwi Prasetio

Research Center for Physics LIPI

Source Mechanism Identification Using Regional Waveform Inversion Approach, Case Study: July 7, 2019 Molucca Sea Earthquake

154

2 GP-02 Alif Azfar Badaruddin

Bandung Institute of Technology

Seismic Velocity Structure Vp, Vs, and Vp/Vs Ratio Analysis of “AS” Geothermal Field Using Seismic Delay Time Tomography Method

155

3 GP-03 Arif Darmawan PT. Elnusa Tbk

Comparison between Automatic and Manual Picking of P-Wave Time Arrival and Tomography Velocity Study Derived from Micro-Earthquake Data in Geothermal Area

156

4 GP-04 Azhar K Affandi Univesitas Sriwijaya

Water table prediction using machine learning algorithms in the wetland area of South Sumatera, Indonesia

157


5 GP-05 Cinantya Nirmala Dewi

Indonesian Institute of Science

The ULF Geomagnetic Anomalous Signal Associated with Nias Earthquake M5.3, North Sumatra Indonesia on September 6, 2018

158

6 GP-06 Indriati Retno Palupi

UPN "Veteran" Yogyakarta

Study of Passive Seismic Tomography with Various Grid by Using Matlab

159

7 GP-07 Muhammad Irfan Universitas Sriwijaya

Study of groundwater level and its correlation to soil moisture on peatlands in South Sumatra

160

8 GP-08 Netty Kurniawati Universities Sriwijya

Variations of Thermodynamic Layers along the Southern Coast of Java and Their Influences in Nutrient Abundance

161

9 GP-09 Octavianus Cakra Satya

Department of Physics Universitas Sriwijaya

Diurnal Characteristics and Spatial Distribution of Rainfall using Tropical Rainfall Measuring Mission (TRMM) data in South Sumatra Province and Surrounding Areas

162

10 GP-10 Syuhada Research Center for Physics-LIPI

The velocity structures derived from anisotropic inversion of teleseismic receiver functions around Flores Island, Indonesia

163

11 GP-11 Titi Anggono Indonesian Institute of Sciences

Crustal structure beneath Simeulue Island, Indonesia: Preliminary study from a joint inversion of receiver function and surface wave dispersion

164

12 GP-12 Nur Sukma Pambudi


Relative Permeability Estimation of Porous Media Using FE LBM with High Viscosity Ratio

165

13 GP-13 Indriati Retno Palupi

UPN "Veteran" Yogyakarta

Subduction modelling by Tomography inversion around Lombok

166

14 GP-14 Abdurrahman Mubarak


LAND SUPPORT STUDY FOR KARST REGIONAL INFRASTRUCTURE USING GEOELECTRICAL METHODS

167


15 GP-15 Budy Santoso Universitas Padjadjaran

IDENTIFICATION OF SLIDING PLANE BASED ON ROCK PHYSICS PARAMETERS (CASE STUDY: LAND MOVEMENT PRONE AREA IN RAILROAD KM-110, PURWAKARTA, WEST JAVA, INDONESIA)

168

16 GP-16 Siti Sailah Sriwijaya University

Analysis of overburden and interburden Layer to predict acid mine drainage By Use of Geo-Penetrating Radar Investigation

169

17 GP-17 Mochamad Kurnia


Reconstruction Of Anak Krakatau Eruption 2018 Followed by Flank Collapse Using Multitemporal And Multidataset Remote Sensing And Batimetry

170

18 GP-18 Reza Eka Pangestu


Application of Remote Sensing Methods for The Development of Government Center at Pangandaran District

171

Biophysics (BP)


1 BP-01 Artha Ivonita Simbolon

Technical Implementation Unit for Intrumentation Development, Indonesia Institute

Comparation Of EMG Classification For Shoulder Movement

173

2 BP-02 Muhamad Agung Suhendra

Indonesia Institute of Science

EEG-P300 Potential in Methadone Subjects based on Parietal and Frontal Channels with Different Image Stimulus

174

3 BP-03 Ulfah Nadiya Indonesia Institute of Science

Alteration In Resting EEG For Different Dosage Of Methadone Treatment

175

4 BP-04 Andri Abdurrochman


Acoustic Parameters Expressions Used in Dental Hypnosis Practices

176


5 BP-05 Kiki Haetami Universitas Padjadjaran

The effect of bioprocess product of coconut husk in pelleted non-estrussion on the stability of ration water, durability and floatability of fish feed

177

6 BP-06 Marwazi Universitas Indonesia

DOSE PROFILE DISTRIBUTION COMPUTED TOMOGRAPHY (CT) ALONG THE Z-AXIS WITH PITCH VARIATION: IN-HOUSE PHANTOM STUDY

178

7 BP-07 RIYAN MUHARAM

UNIVERSITAS INDONESIA

DESIGNING FANTOM IN HOUSE FOR UNIT QUICK CHECK BY COMBINING COMPUTED RADIOGRAPHY (CR) AND DIGITAL RADIOGRAPHY (DR)

179

8 BP-08 KHAIRUL MAR'IE UNIVERSITAS INDONESIA

PHANTOM DESIGN FOR ANALYSIS OF CT IMAGE QUALITY FROM SINGLE-SOURCE AND DUAL-SOURCE CT SCAN

180


Invited Speaker


INV-01

Black is the new green – making carbon battery anodes from biowaste

A. J. Drew1#, A. Jensen1, H. Au2, and M. Titirici2

1School of Physics and Astronomy, Queen Mary University of London

2Department of Chemical Engineering, Imperial College London

#a corresponding author: E-mail [email protected]

Abstract. There is currently a great demand for high performing rechargeable batteries can

only be meet by the Lithium ion batteries (LIB). However, the available resources of Li and

Co – required for LIB manufacture – will not be able to meet future demands and

alternatives must be developed. Sodium ion batteries (SIB) provide a promising candidate as

it is cheap, abundant and much of the technology already in use for LIB can be readily used

in SIB. But the use of SIB has so far been hindered by the lack of good anode materials as

sodium does not intercalate into the graphite used in LIB.

One of the main candidates for SIB anode material is hard carbons (HC), which can be

fabricated from waste biomass (cellulose and lignocellulose, the most abundant materials

on the planet) via sustainable chemical methods (e.g hydrothermal carbonisation). HC is an

amorphous network of carbon mainly composed of disordered graphite-like sheets of ~15 Å

in size. These sheets are stacked in a “falling cards” fashion with an average distance of ~4 Å

between sheets and little order in the orientation of adjacent sheets. HCs are porous on the

nano-scale (~1 nm), meso scale (100s nm) and micro-scale (μm), and the control of these

features is critical for use in batteries.

In this presentation, I will review the

hydrocarbonisation process, and demonstrate

how the pore sizes can easily manipulated by

simply changing the precursor material and

controlling the temperature. I will discuss muon,

and neutron and x-ray scattering results along

with electrochemical and physical

characterisation in these exciting materials.

References

[1] F. Zie et al., Advanced Functional Materials

29, 1901072 (2019).

[2] A. Jensen et al., submitted to Advanced Energy Materials (2019)

Fig. 1 Small angle and wide angle x-ray

scattering (SAXS/WAXS) data in hard

carbons, showing different pore structures

in the carbon.


INV-02

Room-temperature colossal magnetoresistance in terraced single-layer graphene

Ariando

Department of Physics & NUSNNI, National University of Singapore, Singapore

Email: [email protected]

Abstract. A direct and non-invasive sensing and imaging of magnetic domains at the nanoscale has been one of the holy-grails in scientific and technological endeavor ranging from understanding material properties, biomedical applications, to realization of high-density magnetic memory. Although Superconducting Quantum Interference Device (SQUID) can provide extreme magnetic sensitivity, its utilization has been limited due to its poor spatial resolution and cryogenic operation. On the other hand, while Magnetic Force Microscopy (MFM) and spin-polarized Scanning Tunneling Microscopy (sp-STM) techniques can provide high spatial resolution, these techniques are invasive due to the use of a magnetic tip.

The exponential decay of the magnetic signal with the reduction of the domain size and the increase in the distance between the domain and sensing layer has further hampered our capability in resolving magnetic domains at reduced dimensions. In this context, non-spin-based magnetoresistance effect at room-temperature in a two-dimensional electron system is highly potential. However, the formation of traditional 2D electron gas (2DEG) requires a capping layer of around 20 nm and the 2DEG is a quasi-two-dimensional system with a typical thickness of around 4-10 nm, limiting the minimum achievable domain-to-sensor distance. A large non-spin-based magnetoresistance effect in a pure two-dimensional system of one atomic layer thick working at room temperature would be a hallmark for room-temperature magnetic imaging at nanoscale resolution. Unfortunately, graphene, a well-known massless Dirac two-dimensional system, has intrinsically no magnetoresistance effect [Novoselov et al., Nature 438, 197 (2005), Zhang et al., Nature 438, 201 (2005)]. In this talk, I will demonstrate our discovery room-temperature local magnetoresistance effect of up to 5,000% in single-layer graphene by laminating the graphene layer on a terraced surface. This is currently a world record value and one order of magnitude larger than conventional single-layer graphene on boron nitride [Science 357, 181 (2017)]. The observed colossal MR is very robust, independent of the substrate surface chemical composition, and can be maintained above 1,000% even at a high level doping of ~1012 cm-2. Systematic studies combining electric-field effect, atomic force microscopy, Raman spectroscopy, and scanning tunneling spectroscopy indicate that charge-density fluctuation (the presence of charge puddles) is the responsible mechanism for the giant magnetoresistance effect observed. This is further supported by our density functional theory calculation and the perfect fit of the magnetoresistance data using effective medium theory, supporting the presence of charge fluctuation in our single-layer graphene. This work not only provides a genuinely new route for magnetic sensing at nanoscale, it also provides new physical understanding of the electronic properties in graphene. The method is also applicable for studying and generating new properties in other 2d materials.


INV-03

Inorganic–Organic Hybrid Perovskite Solar Cells Fabricated with Additives

Y. Furukawa1, S. Ikawa1, H. Kiyohara1, Y. Sendai1, and A. Bahtiar2 1Department of Chemistry and Biochemistry, School of Advanced Science and Technology,

Waseda University, Shinjuku, Tokyo, 169-8555, Japan 2Department of Physics, Universitas Padjadjaran, Jatinangor, Indonesia

[email protected]

ABSTRACT. Inorganic–organic hybrid perovskite solar cells have attracted significant attention due to their high power conversion efficiencies. However, these solar cells are still facing some challenges, such as instability to moisture, substitution of Pb with Sn. It has been reported that the addition of Pb(SCN)2 improve stability in humid air. In this paper, we report inverted planar perovskite solar cells fabricated with CH3NH3I (MAI), PbI2, and Pb(SCN)2 or Pb(OCN)2 using the two-step method. We made a device having the

TCOHTLperovskiteC60BCPAg structure. X-ray diffraction and infrared absorption measurements indicated that MAPbI3 was the major product using Pb(SCN)2 and Pb(OCN)2. The power conversion efficiency (PCE) of the MAPbI3 solar cell fabricated with Pb(OCN)2 as an additive was 12%. The 70% lifetime (LT70) of an encapsulated cell was defined by time when the cell showed the 70% value of the initial PCE. The LT70 of the MAPbI3 cell fabricated with Pb(OCN)2 as an additive was 500 h. The Pb(OCN)2 additive improved the lifetime of the cell. SEM images of the MAPbI3 films prepared using the additives indicated that crystalline grain sizes became apparently large. This is a factor of the long lifetime of the cells.

Keywords: inorganic/organic hybrid perovskite, additive, solar cell, Pb(OCN)2


INV-04

Poki Chen


INV-05

Photo-physical Properties Controlled by Hyperbolic Metamaterials and Epsilon-Near-Zero Organic Films

Jeong Weon Wu

Physics Department, Ewha Womans University,

52, Ewhayeodae-gil, Seodaemun-gu, Seoul 03760 Republic of Korea

[email protected]

Abstract. Hyperbolic metamaterial (HMM) possesses a hyperbolic energy-momentum iso-frequency surface, which allows a large photon density of states. This leads to the capability to control Purcell factor determining the spontaneous emission rates. When located in a hyperbolic dispersion environment, charge-transfer emission undergoes a substantial modification in the spectral range of fluorescence as well as in the florescence decay rate. Also an optical medium possessing hyperbolic dispersion shows an epsilon-near-zero spectral range, where nonlinear optical response is strongly enhanced.

Metal-oxide multilayer metamaterial with tens nanometers thickness of each layer is introduced as HMM. In the presence of HMM a blue shifting of emission spectra and a shortening of florescence life time observed for charge transfer emission of DCM emitter, which originates from a non-local effect of HMM. Local and nonlocal effects are compared in modifying the dielectric constant of environment, unravelling how two observed effects related in spectral and temporal domains.

Polymethine dye films exhibit J and H aggregates of optical moieties, showing a characteristic strong optical absorption in near IR spectral range, owing to Davydov splitting. This leads to the appearance of epsilon-near-zero (ENZ) spectral region in the real part of dielectric constant from Kramers-Kronig relation. Polymethine dye can be designed to possess both transverse negative and positive hyperbolic dispersion, related to transverse and longitudinal ENZ. Optical Kerr effect, a third order nonlinear optical process, is examined at ENZ wavelength of squarine dye film, and it is found that there exists a strong enhancement of optical Kerr nonlinearity. Furthermore, second harmonic generation, a second order nonlinear optical process, is found to be enhanced in a polymetine dye film.

Keywords: Metamaterial, Hyperbolic Dispersion, Epsilon-Near-Zero, Polymethine Dye


INV-06

Multi-Angle Approach to Magnetic Properties of Nano-State La2-xSrxCuO4

Isao Watanabe1,2,3.4.5.6 1Meson Science Laboratory, RIKEN, 2-1 Hirosawa, Wako 351-0198, Japan

2Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Indonesia, Depok 16424, Indonesia

3Department of Condensed Matter Physics, Graduate School of Science, Hokkaido University, Kita 10, Nisi 8, Kita-ku, Sapporo 060-0810, Japan

4 Department of Physics, Osaka Univerisity, Toyonaka, Osaka, Japan,

5ISIS Muon Group, Rutherford-Appleton Laboratory, Didcot, OXON, OX11 0QX, UK, 6School o Distance Education, Universiti Saing Malaysia, Penang, Malaysia.

Abstract. Advanced science activities of my group in RIKEN will be presented. We are

working on condensed matters and organic molecular systems from multi-angle directions

by using

and other basic experimental techniques. In addition to those, we are performing Density

Functional Theory (DFT) calculations by using a supercomputing system, named as HOKUSAI

in RIKEN, in order to achieve deeper understanding on experimental results. Our systems to

be studied are high-Tc oxides, phyrocholore oxides, alkali-metal super oxides, organic

molecular superconductors/magnets and DNA molecules. Our research activities are on the

basis of collaborations with Indonesian and Malaysian teams. In my talk, I would like to

shortly introduce how we are now working with Indonesian and Malaysian groups in the

beginning. And then, as one example of our research activities, I would like to talk about

recent achievement on the results of our multi-angle research on magnetic and

superconducting properties of the nano-state La-based high-TC superconducting oxide, La2-

xSrxCuO4. I hope that some of you are interested in our collaborations and join to us.

Keywords: La2-xSrxCuO4


INV-07

Optimization of superconducting properties of YBa2Cu3O7−δ films grown by pulsed laser deposition

M. M. Awang Kechik1*, P. Mikheenko2, J.S. Abell2, I. A. Crisan2 , H. Baqiah1, S.K. Chen1, K.P. Lim1 and A. H. Shaari1

1Department of Physics, Faculty of Science, Universiti Putra Malaysia, 43400 UPM Serdang, Malaysia

2School of Metallurgy and Materials, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK

ABSTRACT. YBa2Cu3O7−δ films were deposited on SrTiO3 (STO) single-crystal substrates by pulsed laser deposition (PLD) using a scanning laser beam. The effects of deposition temperature (Ts), in-situ annealing oxygen pressure (Oap) and cooling time (Ct) on the superconducting properties of the grown films were investigated by AC susceptibility, magnetisation loops and transport measurements using a Quantum Design Magnetic property measurement system (MPMS). Scanning electron microscopy (SEM), Atomic force microscopy (AFM) and X-ray diffractions (XRD) were also used to characterise the films microstructure. The critical temperature Tc decreases when the Ts rised from 780 to 820 °C. Film grown at Ts of 780 °C showed the smoothest surface with root mean square (RMS) ~ 2.40 nm. The RMS increases with increasing Ts. The Tc increased with Oap and Ct to optimum value of 91 K and then decreased. Granular and porous microstructure of films were progressively observed with increasing Oap. The XRD results revealed 100 % (00l) orientation of the films. At 77.3 K, the highest Jc gives values of 2.8 MAcm

-2 at self-field and 0.8 MAcm-2 at 1 Tesla also obtained by these conditions. There seems to be an optimum annealing oxygen pressure Oap of 450 Torr producing optimum Jc at 5 K and 77.3 K. It is found that film with superconducting transition temperature 91 K can be obtained with at Ts of 780 °C and Oap 450 Torr.

Keyword: deposition temperature; in situ-annealing oxygen pressure; superconducting; YBa2Cu3O7−δ; pulsed laser deposition.


AM-08

Nanofluids of Iron oxide Fe3O4: A Study of Colloid Stability in Various Medium Dispersed

Togar Saragi1*, Bayu Permana1, Hotmas D Sinaga1, Feni Rahmi1, Gustiani A Pramesti1, Adi Sugiarto1, Arnold Therigan1, Norman Syakir1, and Risdiana1

Department of Physics, Universitas Padjadjaran, Jl. Raya Bandung-Sumedang Km. 21 Jatinangor Jawa Barat Indonesia

*corresponding author: [email protected]

Abstract. Magnetic nanofluids are a category of nanomaterial which exhibit simultaneously liquid and superparamagnetic properties. These nanofluids are colloids of magnetic nanoparticles stably dispersed in liquid carrier. Magnetic nanoparticles with and without SiO2 encapsulation has been successfully synthesized by co-precipitation method from ferrous and ferric precursors dispersed in various liquid. Fe3O4 nanoparticles were investigated by Zeta Potential and HR-TEM to determine the stability of nanoparticles, average particles size and microstructure of nanoparticles. From zeta potential measurements is was found that the value of zeta potential for Fe3O4 dispersed in ethanol was ± 0,9 mV, while dispersed in di-water was ± 31,1 mV, indicating that nanoparticles Fe3O4 are more stable in di-water. From HR-TEM measurement, it was found that nanoparticles Fe3O4.SiO2 are stable dispersed in di-water. The increasing of zeta potential indicated the adsorption of negatively charged hydroxyl group to the surface of Fe3O4 nanoparticles. The stability of nanoparticles will be discussed due to the interaction between iron oxide and lower electronegativity of hydroxyl group.

Keywords: copresipitation, encapsulated, magnetite, medium dispersed, nanofluid, iron oxide


INV-09

Synthesis and Characterization of Gold and Silver Nanoparticles and Its Application for Photovoltaic Devices

Priastuti Wulandari*

Physics of Magnetism and Photonic Research Division, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Jl. Ganesa No. 10 Bandung, 40132, West Java,

Indonesia *Email: [email protected]

Abstract. Engineered nanomaterials of varying elemental composition, surface chemistry, size, and shape have found enormous potential for use in biomedical applications, sensing devices and optoelectronic devices such as solar cells and LED. In particular, the unique size-dependent properties of metal nanoparticles include localized surface plasmon resonance, catalytic properties as well as photothermal activity. In case of gold nanoparticles (AuNPs) and silver nanoparticles (AgNPs), the profound scale and scope of research are due to facile fabrication and numerous emergent properties that can be finely tuned. AuNPs and AgNPs can be made with an array shapes and surface functionalities. There are many promising optical applications of AuNPs and AgNPs due to the strong effect of interparticle interactions on the surface plasmon resonance. These include optical antenna, photovoltaic, surfaced-enhanced Raman scattering, and nonlinear optical properties. Optical applications rely on photonic coupling between nanoparticle, which exponentially increases with decreasing particle separation distance. Therefore, capping ligands are of practical significance for optical applications and of fundamental interest for investigating the limits of plasmonic coupling. In addition, AuNPs and AgNPs functionalized with chain ligands have become important subjects in fundamental research on mechanism of aggregation, surface ligand exchange, nanoparticle self-assembly, and charge transport.

Our research works are done by preparing AuNPs and AgNPs and functionalized their surfaces by used of various organic molecule (citrate, oleylamine and thiolate). Characterization of AuNPs and AgNPS are conducted by Transmitted Electron Microscope (TEM), UV-Vis spectrometer and FT-IR spectrometer. On the other hand, incorporation of metal nanoparticles (AuNPs or AgNPs) into optoelectronic device such as photovoltaic structure has been actively pursued in order to improve the device performances. It has been known that metal nanoparticles exhibit strong LSPR field, which contributes to the significant enhancement of local electromagnetic field on the metal surface. In turn the LSPR field is expected to enhance the photon absorption, the efficiency of exciton generation and hopefully the charge transfer process in photovoltaic device.

Keywords: Gold and Silver Nanoparticles, Localized Surface Plasmon Resonance, Photovoltaic Device.


INV-10

The Addition of Reduced Graphene Oxide Layer to TiO2 Photoanode of DSSC using UV-oven Spraying Method

Lusi Safriani, Annisa Aprilia, Muhammad Rizki Nurawan, Fitri Yuliasari, Titis Amelia, Norman Syakir and Fitrilawati

Physics Department, Faculty Mathematics and Natural Sciences, Universitas Padjadjaran

Jl. Raya Bandung-Sumedang Km.21 Jatinangor 45363, Sumedang, Jawa Barat

Abstract. Third generation photovoltaic cells, dye-sensitized solar cells (DSSC) have attracted much attention and become one of interest topics in current research. One important part of DSSC that determines its performance is photoanodes. Graphene has been used to enhance power conversion efficiency in DSSC through increased electronic transportation. Introduction of graphene into DSSC is realized through reduction of graphene oxide (GO) to reduced graphene or rGO. In this work, DSSC based on TiO2 photoanodes modified by rGO were fabricated. rGO layer was deposited on TiO2 mesoporous layer using UV-oven spraying method. Result show that DSSC parameters such as open circuit voltage, short circuit current and fill factor increase with the incorporation of rGO layer in TiO2 photoanodes. We found that DSSC with TiO2-rGO photoanodes has 7.46% power conversion efficiency which was 50% higher that of DSSC with TiO2 photoanodes.

Keywords: DSSC, TiO2 photoanodes, rGO.


INV-13

Novel electric and magnetic properties in La0.7(Ba0.97Ca0.03) 0.3Mn1-xCuxO3

Budhy Kurniawan1*, Ikhwan Nur Rahman1, Dicky Rezky Munazat1, Dhawud Sabilur Razaq1, Agung Imadudin2, Witha Kusuma Putri Berlian3, Ismael Francisco Diaz Ortega4, and Hiroyuki

Nojiri4

1Department of Physics, Universitas Indonesia, Depok 16424, Indonesia 2Research Center for Metallurgy and Materials, Indonesian Institute of Sciences (LIPI),

Gedung 470, Puspiptek, South Tangerang 15314, Banten, Indonesia 3Research Center for Physics, Indonesian Institute of Sciences (LIPI),

Puspiptek, South Tangerang 15314, Banten, Indonesia 4 Institute for Materials Research, Tohoku University, Aoba-ku, Sendai 980-8577, Japan

Abstract. We report the effect of the copper doped on electrical and magnetical properties in La0.7(Ba0.97Ca0.03) 0.3Mn1-xCuxO3 (LBCMCO) (x=0 and x=0.03). The samples are prepared by Sol-Gel (SG) method. The X-Ray Diffraction (XRD) analysis shows that both samples crystallize in the rhombohedral structure with R-3c space group without any impurity phase. The Scanning Electron Microscopy / Energy Dispersive X-Ray Spectroscopy (SEM/EDS) results reveals that the sample are in good quality and confirms an existence of copper Cu substitution. The electrical resistivity measurements shows that the resistivity were decreased with the Cu doping. Based on observations with temperature and magnetic field dependences of magnetization M (T, H) data, it is revealed that the Curie temperatures (𝑇𝐶) were decreased from 339 K for x=0 to 320 K for x=0.03 samples and also for the magnetization values. The M (T,H) data analysis demonstrates that magnetic moment of samples were decreased, while the resistivities were also decreased and the conductivities were increased due to Cu doping. It means the magnetic contribution of manganese Mn ions are still dominant compared with Cu ions. Electron Spin Resonance (ESR) measurements show that contribution of asymetric electron spin interaction decreased when x=0.03 Cu is doped. It reveals that number of free electrons will decrease. Exploring these data, it is interesting to discuss who is responsible for the decreasing of resistivity when Cu is doped. We elaborate the M (T,H), resistivity and ESR data to get know who is responsible for the increasing of conductivity when Cu is inserted in the sample.


INV-11

Magnetic parameters analysis as proxy indicators in environmental assessment

Dini Fitriani1,*, Eleonora Agustine1, and Kartika Hajar Kirana1 1 Department of Geophysics, Faculty of Mathematics and Natural Sciences, Universitas

Padjadjaran, Jalan Raya

Bandung-Sumedang Km 21, Sumedang 45363; [email protected] (E.A); [email protected]

* Correspondence: [email protected]

Abstract: Rock magnetic method has been used extensively to assess environmental problems based on the assumption that the presence and abundance of magnetic minerals could reflect the environmental conditions. We have carried out number of studies related to magnetic analysis in different environmental objects. Study on soil samples from Bojongsoang paddy field showing that the use of agrochemical materials and the presence of industrial waste transported into paddy field may affect the magnetism and morphology of magnetic minerals in soil. We also identified magnetic susceptibility and morphology of magnetic grains on leachate sludge from sanitary landfill. The results show that magnetic minerals in leachate sludge are dominated by ferromagnetic. Meanwhile, Scanning Electron Microscopy analysis infers that magnetic grains in leachate sludge were derived from lithogenic and anthropogenic origin. In other study, we have analyzed that the breakdown of diamagnetic organic materials in composting process could produce ferrimagnetic minerals.

Keywords: magnetic mineral, magnetic susceptibility, morphology, leachate


INV-12

Dimming Control Effect in Visible Light Communication

Bambang Mukti Wibawa1, Darmawan Hidayat1, Liu Kin Men2, Setianto2, Camellia Panatarani2

1Departement of Electrical Engineering Universitas Padjadjaran 2Departement of Physics Universitas Padjadjaran

Jl. Raya Bandung-Sumedang Km 21 Jatinangor 40363, West Java Indonesia

Corresponding: [email protected]

Abstract. Solid-state lighting is a rapidly developing field. General lighting using phosphor conversion LED (PcLED) and RGB LEDs are more efficient, have high reliability, are long-lived compare with incandescent and fluorescent lamp, and can be applied to many lighting applications. Light Emitting Diode (LED) can be switched on/off at very high speed without flickering to human eyes, which means the light can be moduated to realize visible light communication (VLC). VLC offers the possibility of using LEDs for simultaneous lighting and data communication. One important specification in lighting is dimming, where there are various modulation techniques for dimming control in visible light communication. In this work, the characteristic of LED related to light-communication and design of visible light communication system through two different techniques modulation On Off Keying (OOK) and Color Shift Keying (CSK) are investigated for different dimming range and bit rate.

Keywords: VLC, LED, Dimming, Characteristic of LED,OOK, CSK.


INV-13

Design of Cylindrical Nanoshells for Optical Device Applications

Alexander A. Iskandar

Physics of Magnetism and Photonics Research Division

Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung

Jl. Ganesa 10, Bandung 40132, Indonesia

Email: [email protected]

Scattering of electromagnetic wave by nano scatterer has been a fascinating phenomenon,

whereby due to interaction with the scatterer, the scattered wave could be used for various

applications. Sensing applications can be achieved using the information that is encoded in

the scattered wave, which comes from the response of the scatterer material when it

interacted with the electromagnetic wave. Further, interference of the multipole

components of the scattered wave due to the physical and geometrical configuration of the

scatterrer can be used to form the scattered radiation.

Due to the high symmetry of cylindrical scatterer, the analysis of its scattering phenomenon

can be done using the exact the multipole expansion method. Even, when the symmetry is

broken, this method can still be used.

In this talk, I will present several of our research results on symmetric as well as asymmetric

cylindrical nanoshell scatterer, consisting of plasmonic system as well as all dielectric

scatterer. We will show that the well known Plasmonic Hybridization (PH) phenomenon

have a richer structure in the case of metallic cylindrical nanoshell due to the appearance of

cavity modes. Further we will show that this metallic cylindrical nanoshell can be used for

refractive index sensing of gaseous and liquid samples outside the tube (outer sensing) and

inside the core (inner sensing). Next, by breaking of the symmetry of the position of the

dielectric core of the metallic cylindrical nanoshell, different axial offsets exhibit interesting

variations of the angular distribution of the corresponding scattered wave intensity, which

reveals significantly sensitive variations to different incident wave directions. Hence this

could lead to its potential development for sensing the direction of incoming waves. Finally,

we will also show that by controlling interference of Mie resonance modes, the scattering

patterns of an asymmetric dielectric cylindrical nanoshell can be tailored to achieve almost

arbitrary scattered wave direction.

Keywords: Cylindrical Nanoshell, Scattering, Multipole Expansion, Mie Resonances, Sensing, Directed Radiation


Acknowledgements: This work was partially supported by Penelitian Dasar Unggulan Perguruan Tinggi DIKTI 2017 (Contract Number 532m/I1.CO1/PL/2018) from Indonesian Ministry of Research, Technology and Higher Education and Program Penelitian, Pengabdian Kepada Masyarakat dan Inovasi (P3MI) 2017 from Institut Teknologi Bandung (contract no. 071/I1.B04/ SPKWRRIM/III/2017).

References:

[1] [1] R. N. S. Suryadharma, A. A. Iskandar and M. O. Tjia, Photonic States Mixing Beyond the Plasmon Hybridization Model, J. Appl. Phys. 120 043105 (2016).

[2] Suhandoko D. Isro, Alexander A. Iskandar and May-On Tjia, Complementary high performance sensing of gases and liquids using silver nanotube, J. Opt. 19 115003 (2017).


INV-14

Free Energy Lattice Boltzmann Method for multicomponent flow with high viscosity ratio

Irwan Ary Dharmawan

Department of Geophysics, Universitas Padjadjaran

[email protected]

Abstract. Multicomponent flows are of great importance in many engineering applications, including petroleum, chemical, and environmental engineering. Among the conventional techniques for solving multicomponent flow, the Lattice Boltzmann method (LBM) is an alternative solution since it can easily handle the flow in the complex geometries and easy to paralyzed. Free Energy LBM is chosen since it is entirely thermodynamically consistent. Imposing a high viscosity ratio will lead highly diffusive interfaces and this will affect into the numerical stability. A key element of this work is the interpolation between the interface of the binary fluid to minimize the diffusivity of the viscosity jump. Here, we investigate Poiseuille flow of binary immiscible fluid and evaluate the results with the analytical solutions. In addition, the relative permeability calculation of the model is also analyzed.

Keywords: multicomponent, immiscible, free energy lattice Boltzmann method.


INV-15

The Role of National Nuclear Energy Agency in the Development of Industrial

Radiography: A Review

Baskan Hanurajie, Dinnia Intaningrum and Alfitri Meliana*

Center for Nuclear Standardization and Quality,

Gedung-71, Puspiptek Serpong 15314, Indonesia

[email protected]

Abstract. The increasing need for personnel radiography makes Batan as the only government agency engaged in nuclear research and technology in Indonesia having a crucial role in providing these services to the public. Centre for Nuclear Standardization and Quality (CNSQ) through the Person Certification Body provides services in the form of personnel radiography certification, especially industrial radiography according to ISO-17024 and accredited by national accreditation committee. The development of industrial radiography along with the development of technology provides an opportunity for Batan to make improvements and considerations in accordance with current industry needs. Radiography is one of the basic physics that applied directly to industrial need it which supporting by some applied physics. The radiographic process as an effort in the Non-Destructive Test (NDT) has experienced significant developments in the field of technology in the past decades. Previously, which only relied on the film radiography process, now innovations in the form of digital radiography have emerged with computational and modeling. Seeing the rapid development of the NDT process and world industrial radiography technology, CNSQ preparedness in dealing with this is certainly very necessary, such as in the preparation of reference standards, equipment, and the certification process. This review are gives explanation that physics especially NDT radiography have been applied from basic to advance in many industrial application.

Keywords: physics, radiography; non-destructive test; certification


Group A (Advanced Material)


AM-01

Structure and electrochemical performance of Li(Mn2-x-yNixAly)O4 synthesized with minimum Ni and Ni/Al dual-doping

Achmad Subhan1, Ferensa Oemry1, Abdulloh Rifai1, Ahmad Ilham Ramadhani2, Heri Jodi3, Bambang Priyono4

1Research Center for Physics, Indonesian Institute for Sciences (LIPI), KomplekPuspiptek, Tangerang Selatan, Banten 15314, Indonesia

2Department of Physics, UIN Maulana Malik Ibrahim, Jl. Gajayana 10, Malang, East Java 65144, Indonesia

3Center for Technology of Nuclear Industry Material, Center for Science and Technology of Advanced

Material, BATAN, Serpong, Tangerang, Indonesia 4Department of Metallurgy and Materials Engineering, Faculty of Engineering,

Universitas Indonesia, Kampus UI Depok, Jawa Barat 16424, Indonesia *Corresponding author: [email protected]

Abstract. The LiMn2O4 co-doped with nickel and aluminum forming Li(Mn2-x-yNixAly)O4 spinel phases have been synthesized by wet chemistry technique using an aqueous solution of metal complexes of Mn(III), Ni(II), and Al(III) served as complexing agents. The structural properties of the synthesized products of non-doped LiMn2O4 (LMO), LiMn1.95Ni0.05O4, and LiMn1.95Ni0.05Al0.05O4 have been investigated by X-ray Diffraction (XRD), Raman Scattering (RS), and Fourier-Transform Infra-red (FT-IR) spectroscopy. XRD results show that Ni and Ni,Al-doped LMO would undergo lattice contraction due to Ni and Al that have smaller atomic radii substitute Mn atoms as confirmed by vibrational spectroscopies measurement. Furthermore, cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) measurements demonstrate that the discharge capacity of Ni-doped LMO would increase by 37% to 104.25 mAh g−1 from 76.07 mAh g−1 at first cycle, while further doping with Al would increase its Li+ ion diffusion rate by three-fold to 4.78 x 10-13cm2/s from 1.51 x 10-13cm2/s as observed in Ni,Al-doped LMO.

Keywords: Lithium batteries, LiMn2O4, dual doping, Nickle, Aluminum.

mailto:[email protected]


AM-02

The influence of Cu Subtitution on the Structure of Ca0.9La0.05Bi0.05Mn1-XCuxO3 ( X = 0, 0.025, 0.05, 0.075, and 0.1) Manganites

Bathara Bhisma Arbianto1 and Budhy Kurniawan1*

Department of Physics Universitas Indonesia Depok 16424, Indonesia [email protected]

Abstract. The sequence of Cu substituted Ca0.9La0.05Bi0.05Mn1-XCuxO3 ( x = 0, 0.025, 0.05, 0.075, and 0.1) manganite has been studied and it has effect in the structure. The samples was synthesized using the citric acid sol-gel method. The samples was sintered at 800 0C for 5 hours. The crystallography and morphological of all samples was investigated using X-Ray Diffractometer (XRD) and Scanning Electron Microscope (SEM). The Rietveld analysis of the powder x-ray diffraction shows that all the samples crystallize in orthorhombic structure with pnma space group symmetry without any impurity phase. Even though the Cu substitution does not change the structure, but it changes the grain size. SEM results showed a valid different morphological structure. The increasing Cu concentration, it made the grain size larger, dispite all the samples had the same treatment.

Keywords: Sol-Gel Method, Cu Subtitution, Manganite



AM-03

Structure and Morphology Properties of Nanosized La0.75K0.05Ba0.05Sr0.15MnO3 Manganites

Dhawud Sabilur Razaq, Budhy Kurniawan*, Ikhwan Nur Rahman, and Dicky Rezky Munazat

Department of Physics, Universitas Indonesia, Depok 16424, Indonesia *Corresponding author: [email protected]

Abstract. Nanosized La0.75K0.05Ba0.05Sr0.15MnO3 manganites have been synthesized using sol-gel method. Afterwards, the samples were sintered at eight different temperature ranging from 650 to 1000 °C. Phase purity, crystal structure and the morphology of the sample have been examined using X-Ray Diffractometer (XRD) and Scanning Electron Microscope. It has been found that different higher sintering temperature greatly affect the phase purity and crystallite size of the sample. Regardless of the sintering temperature, all the samples crystallized in rhombohedral structure with R-3c space group. The crystallite size of the samples is found to increase from 41.59 nm up to 73.42 nm as the sintering temperature increases. Further analysis from XRD result shows that sintering temperature also affect the average Mn-O bond length and Mn-O-Mn bond angle of the sample. The average Mn-O bond length is found to increase while the average Mn-O-Mn bond angle tends to decrease as sintering temperature increases. SEM measurement shows that various grain size ranging from ~100 nm up to ~ 340 nm exists in all the sample regardless the sintering temperature.

Keywords: Structure, Morphology, Manganite, Sol-gel, Nanosized


AM-04

Electrodepositing Ni-TiN/Si3N4 Composite Layer in Varying Current Density

Esmar Budi1,2,a, Yani Oktaviani1, Achmad Fikry1, Widyaningrum Indrasari1, Iwan Sugihartono1, Teguh Budi Prayitno1

Department of Physics, Faculty of Mathematics and Science, Universitas Negeri Jakarta

Department of Physics Education, Faculty of Mathematics and Science,

Universitas Negeri Jakarta, (Jl Rawamangun Muka I Jakarta 13220) acorresponding author: [email protected]

Abstract. Composite of two phases with crystal grains of titanium nitride (TiN) and amorphous of silicon nitride (Si3N4) had shown an improvement of mechanical properties as shown by composite layer of nickel (Ni) and TiN. In this study, Ni-TiN/Si3N4 composite layer on tungsten carbide bar have been prepared by using electrodeposition to study the effect of current density on the microstructure and mechanical properties of the layer. The optimum morphology with on crack seen and maximum hardness was shown by the sample electrodeposited at current density of about 2.5 mA/cm2.

Keywords: Ni-TiN/Si3N4 composite, electrodeposition, current density, microstructure, hardness.



AM-05

Mechanical Influence of Milling on the Electrical Conductivity of LiFeSi0.03P0.97O4/C Cathode Composite Material

Mochamad Zainuri, Hafizhah Ellora Della, Bintoro Anang Subagyo

Department of Physics, Faculty of Science, Institut Teknologi Sepuluh Nopember, Campus ITS Sukolilo, Surabaya 60111, Indonesia

[email protected]

Abstract. LiFeSi0.03P0.97O4/C cathode composite materials with variations in milling time of 4, 8, 12, and 16 hours have been synthesized successfully by solid-state reaction and high ball milling energy. The Iron sands From Tanah laut kalimantan used as source of ion Fe and Glucose used as material coating. Based on characterization using XRD have shown all of the milling time indication olivine phase except for 16 hours. The increasing milling time have influence decreasing dimension of chatode particle. Identification electrical conductivity of material chatode using LCR meter obtained the largest conductivity (1.75x10-8 S/cm) at 16 hours.

Keywords: Electrical Conductivity, Milling Time, and Solid-state Reaction.


AM-06

The Dependence of Magnetic Moments on Magnetic Impurities of Ni in

Eu1.86Ce0.14Cu1-yNiyO4+-

M. A. Syakuur1,a, Y. Maryati1,b and T. Saragi1,c Risdiana1, d*

1Department of Physics, Padjadjaran University, Jl. Raya Bandung-Sumedang km. 21 Jatinangor, Sumedang 45363, Indonesia

[email protected], [email protected], [email protected] d*[email protected] (corresponding author)

Abstract. Superconductivity is a phenomenon when resistivity becomes zero at low temperatures below the critical temperature ( Tc). This Tc depends on the structure, composition and impurities of the material [1-3]. Here, the partially substitution of magnetic

impurity Ni for Cu in electron-doped superconducting cuprates of Eu2-xCexCu1-yNiyO4+- with x = 0.14 and y = 0, 0.01 and 0.02 have been studied in order to investigate the effect of Ni impurity on the Tc and the value of magnetic moments per unit volume extracted from susceptibility data in under-doped region. Magnetic-susceptibility measurements were carried out at low temperatures down to 2 K. Figure 1 shows Temperature dependence of

dc magnetic-susceptibility on field cooling at 5 Oe for Eu1.86Ce0.14Cu1-yNiyO4+- with y = 0, 0.01, 0.02. For sample with y = 0, diamagnetic behavior is observed starting from about 9 K.

The superconductivity disappeared at y 0.01. The values of magnetic moment in every volume unit decreased with increasing Ni.

Keywords: DC-magnetic susceptibility, electron-doped superconductor, Magnetic moments, Ni impurities.



AM-07

The Influence of Dy Substitution on Increasing Coercivity of Pr20-xDyxFe72B8 (x= 0;1.0; 2.0;3.0 and 5.0) Permanent Magnet

Nanang Sudrajat1,2, Dedi2, Azwar Manaf1* 1Department of Physics, Faculty of Mathematics and Science, Universitas Indonesia, Depok

16424 Indonesia 2Research Center for Electronics and Telecommunications, Indonesian Institute of Sciences,

Bandung 40135 Indonesia *Corresponding author: [email protected]

Abstract. Microstructure and magnetic properties of two types permanent magnet with Pr20-xDyxFe77B8 (x = 0; 1.0; 2.0; 3.0 and 5.0) compositions which respectively prepared by a conventional powder metallurgy technique with and free of further refinement treatment under high power ultrasonic irradiation are compared. Microstructurally, the two type samples have the same crystallites morphology, randomly distributed with an average crystal size after mechanical refinement for 20 hours was still much larger than those obtained after refinement through a high-power ultrasonic radiation. In terms of magnetic properties, the two types of magnet have the coercivity (JHc) value increased due to the partial substitution of Dy atoms to Pr in (Pr, Dy)2Fe14B. The value of JHc continues to increase with the increase of atomic fraction of Dy substitution. However, the increased always followed by a decrease in remanence. Such trend was also applicable to samples with experienced further crystallite refinement treatments through ultrasonic radiation. Nevertheless, the value of the ratio between remanence and coercivity (Jr/JHc) of the two types of sample was obtained differently. This paper discusses the results of microstructure evaluation and the value of the Jr/JHc ratio of two different types of Pr20-xDyxFe72B8 permanent magnet samples (x = 0; 1.0; 2.0; 3.0 and 5.0).

Keywords: Rare earth permanent magnets, Dy substitution, coercivity, powder metallurgy, NdFeB


AM-08

Improvement Drawability of Advanced Aluminum Alloy Wire by Using Cryogenic Drawing Method

Trisna Ardi Wiradinata1* and Kazunari Yoshida2 1Graduate Student, Tokai University, Japan

2School of Engineering, Tokai University, Japan

(4-1-1 Kitakaname, Hiratsuka-shi, Kanagawa 259-1292)

*corresponding author: [email protected]

Abstract. In this research, the aluminum A6061 alloy wire were drawn to their drawing limit, by using conventional drawing and cryogenic drawing. It also explains the difference between two processes and presents in detail the changes in mechanical properties of aluminum A6061 alloy wire used for this research. Aluminum A6061 alloy are very hard to manufacture due to their low workability. For that reason, research is conducted on the improvement drawability of advanced high strength aluminum alloy wires by using cryogenic drawing method in comparison with the conventional drawing. For the purpose of this research the best temperature annealing conditions and drawing condition were established. The experiment effects of the die angle on drawing were compared with Finite Element Method (FEM) analysis and Slab Method. The result by using cryogenic wire higher strength wires were attained, higher drawability and better wire surface, due to the use of lubricant in this process, was achieved. The effectiveness of the cryogenic drawing method for advanced aluminum alloy wire was confirmed.

Keywords: Drawability, Aluminum Alloy Wire, Finite Element Method (FEM), Cryogenic Drawing.


AM-09

Study of Purity, Electron Mobility and Magnetic Properties of Eu1.91Ce0.09CO4 and Eu1.84Ce0.16CuO4

Yuyu R. Tayubi1, Yati Maryati2, Nuraeni Nafisah2, Diba G. Aulia2, Eka Nurwati2, Tiara Amalia2, M. Abdan Syakur2, Wiendartun1, Selly Feranie1, Togar Saragi2 and Risdiana2*

1Department of Physics Education, Faculty of Mathematics and Natural Sciences, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No. 229, Isola, Kec. Sukasari, Kota Bandung, Jawa

Barat 40154. 2Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas

Padjadjaran, Jl. Raya Bandung-Sumedang km 21 Jatinangor, Sumedang, West Java, Indonesia 45363

*Corresponding author: [email protected]

Abstract. Superconducting Cuprates of Eu2-xCexCuO4 (ECCO) with x = 0.09 (Eu1.91Ce0.09CuO4) and x = 0.16 (Eu1.84Ce0.14CuO4) have been synthesized using solid-state reaction method. In all heating process, every samples was covered by CuO to prevent the excess of oxygen into the samples and to get superconducting samples without annealing process. Purity, electron mobility and magnetic properties of all samples were investigated by XRD, resistivity and susceptibility measurement. From XRD analysis, it is found that 96.6% of T’ structure of ECCO was observed for x = 0.09, while 96.1% for x = 0.16. Superconducting properties were not observed in both samples from resistivity and susceptibility measurements. It is probably caused the excistence of exess oxygen in the samples and induced the disorder of electrostatic potential of CuO2 plane.

Keywords: electron mobility, magnetic suseptibility, purity, superconductor cuprates,

E2-xCexCuO4,.


AM-10

Effect of Lead-free Perovskite Cs2SnI6 Addition in the Structure of Dye Sensitized Solar Cell

Herlin Pujiarti, Rahmat Hidayat and Priastuti Wulandari*

Physics of Magnetism and Photonics Research Division, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Jl. Ganesa No. 10 Bandung, 40132, West Java,

Indonesia *Email: [email protected]

Abstract. Over the past few years, metal halide perovskites have been considered as a promising material for application in photovoltaic devices because of its unique optical and electrical properties. In particular, Sn-based perovskite have been considered to replace Pb-based perovskite because of toxic issue and it will raise concerns to the environmental impact. Metal halide perovskite materials offer many advantages such as low-cost fabrication process, long diffusion lengths and widely-tunable band gap with great light absorption potential. Nevertheless, the low stability of perovskite materials is still become problem to be addressed for solar cell researchers. In this study, we attempt to prepare the variant of perovskite based-Sn (Cs2SnI6) which is air and thermal stable and we fabricate dye sensitized solar cell (DSSC) with addition of Cs2SnI6 perovskite in the structure of DSSC in order to improve efficiency of the device. Synthesis of Cs2SnI6 perovskite was done by mixing of Cs2CO3 in HI and SnI4 in CH3CH2OH solvent to form precipitate in room temperature. Purification process is important in the step of synthesis to take out all extra ion and solvent remained during the process. While fabrication of DSSC was done by screen printing and spin-coating technique. Characterization of Cs2SnI6 was done by UV-Vis spectroscopy and XRD measurement as explained in our previous research. Device performance was performed by J-V measurement equipped by AM 1.5 solar simulator and for Electrochemical Impedance spectroscopy (EIS). In our experiment, addition of Cs2SnI6 were perform in the mixing form of dye N-719 and also immersing in TiO2 layer. Absorbance spectra of dye N-719 with addition of Cs2SnI6 shows the enhancement of absorption in comparison to the spectrum of dye 719 reference. Photovoltaic performance of our fabricated DSSC reveals the significantly enhancement in current density at short circuit condition (Jsc) along with the increasing of voltage in open circuit condition (Voc) and it perform devices efficiency up to 4% together with EIS results that will be discussed in detail.

Keywords: Cs2SnI6 perovskite, N719 dyes, Dye Sensitized Solar Cells, J-V measurement

52 4th Padjadjaran International Physics

the future of energy and advanced materialspips.phys.unpad.ac.id/docs/pips2019_abstract book.pdf2019...

Documents