MATERIALS RESEARCH SOCHETY SYMPOSIUM PROCEEDIINGS VOLUME 4 8 8

ElectiicaL OpticaL and Magnetic Properties of

Organic Solid-State Materials IV Symposium held December 1-5,1997, Boston, Massachusetts, U.S.A.

EDITORS:

John R. Reynolds University of Florida

Gainesville, Florida, U.S.A.

Alex K-Y. Jen Northeastern University

Boston, Massachusetts, U.S.A.

Michael F. Rubner Massachusetts Institute of Technology

Cambridge, Massachusetts, U.S.A.

Long Y. Chiang National Taiwan University

Taipei, Taiwan.

Larry R. Dalton University of Southern California

Los Angeles, California, U.S.A.

iMlRlSl Materials Research Society

Warrendale, Pennsylvania

CONTENTS

Preface xix

Acknowledgments xxi

Materials Research Society Symposium Proceedings xxii

PARTI: ORGANIC LIGHT-EMITTING MATERIALS AND DEVICES

"Optically and Electrically Excited Semiconducting Polymer Structures 3

M. Becker, S.E. Burns, O.J. Denton, N.T. tlarrison, N. Tessler, T.D. Wilkinson, and R.ti. Friend

Transient Electroluminescence From PPV Under Strong Voltage Pulses 15

V. Savvate'ev, R. Pogreb, D. Davidov, H. Chayet, R. Neumann, and Y. Avny

Light-Emitting and Hole-Transporting Polymers for LEDs 21 Toshihiro Ohnishi, Shuji Doi, Masato Ueda, Fumi Yamaguchi, and Takanobu Noguchi

White Light-Emitting Electroluminescence Devices with Organic Oligomers 27

F. Meghdadi, S. Tasch, W. Qraupner, S.E. Döttinger, M. Hanack, M. Qraupner, A. Hermetter, and Q. Leising

Plastic Multilayered Molecular Organic Light-Emitting Diodes 33

George M. Daly, Hideyuki Murata, Charles D. Merritt, Zakya H. Kafafi, Hiroshi Inada, and Yasuhiko Shirota

'Advanced Photorefractive and Light-Emitting Organic Materials 39

N. Peyghambarian and B. Kippelen

Synthesis and Electroluminescence Study of a Novel Copolymer: Poly(Phenylene Vinylene-Co-Quinoline Vinylene) 51

Ramesh K. Kasim, Bela Derecskei, Martin Fomerantz, and Ronald L. Elsenbaumer

LECs Made of m-LPPP 57 F.F. Wenzl, S. Tasch, J. Qao, L. Hölzer, U. Schert, A.J. tieeger, and O. Leising

"Invited Paper

v

Electrochemically-Based Light-Emitting Devices From Sequentially Adsorbed Multilayers of a Polymerie Ruthenium (II) Complex and Poly(Acrylic Acid) 63

Aiping Wu, Jin-kyu Lee, and Michael F. Rubner

Improved Electron Injection in Organic Light-Emitting Devices by Applying Thin Insulating Layers 69

K. Pairleitner, S. Tasch, Q. Leising, and U. Schert

*Control of Light-Emitting Polymer Devices Using Polymer/Polymer Interfaces 75

A.J. Epstein, Y.Z. Wang, D.D. Gebier, D.H. Fu, and T.M. Swager

New Luminescent PPV Derivatives for LED Applications 87 B.S. Chuah, F. Cacialii, J.E. Davies, N. Feeder, R.H. Friend, A.B. Holmes, E.A. Marseglia, S.C. Moratti, J-L. Bredas, and D.A. dos Santos

AC Light-Emitting Diodes and Their Transient Characteristics: Response Time and Carrier Transport 93

A.J. Pal, T. Östergärd, R. Österbacka, K-M. Källman, and FI. Stubb

Dynamics of Polarons in Guest-Host-System Polymer Light-Emitting Devices 99

E.J. W. List, J. Fartee, W. Qraupner, J. Shinar, and O. Leising

•Polymerie Zinc-Bisquinoline-Based Self-Assembled Light-Emitting Diodes 105

F. Papadimitrakopoulos, D.L. Thomsen, III, and K.A. Higginson

Polymer Layer Ordering of Polyaniline Derivatives in PLED Devices: Surface Adsorption and Characterization 115

R.C. Advincula, W. Knoll, C.W. Frank, D. Roitman, R. Moon, andJ. Sheats

Internal Field Distribution in Organic Light-Emitting Diodes With Double Layer Structure 121

C. Hochfilzer, T. Jost, A. niko, W. Qraupner, G. Leising, C. W. Tang, E. Forsythe, and Y. Qao

Photoexcitations of Oligothiophenes With Reduced Conformational Mobility 127

L. Rossi, Q. Bongiovanni, C. Botta, O. CeruIIo, Q. Lanzani, A. Mura, F. Sannicoio, T. Benincori, and R. Tubino

Self-Assembled Multilayers and Photoluminescence Properties of a New Water-Soluble Poly(Paraphenylene) 133

Xiaobo Shi, DeQuan Li, M. Lütt, M.R. Fitzsimmons, and G.P. Van Patten

'Invited Paper

vi

PART II: PHOTONIC MATERIALS AND DEVICES

"Photofabrication of Surface Relief Grätings Using Post Functionalized Azo Polymers 141

Sukant K. Tripathy, Jayant Kumar, Dong-Yu Kim, Xinli Jiang, Xiaogong Wang, Lian Li, Mongkol Sukwattanasinitt, and Daniel J. Sandman

High E-O Coefficient Polymers Based on a Chromophore Containing Isophorone Moiety for Second-Order Nonlinear Optics 151

Jinghong Chen, Jingsong Zhu, Galina Todorova, Mingqian He, Lany R. Dalton, Sean M. Garner, Antao Chen, Sang-Shin Lee, Vadim Chuyanov, and William H. Steier

"Passive Polarization Rotators for Nonlinear Optical Devices 157 T S . Kowalczyk, L-Y. Liu, and tl.S. Lackritz

Molecular Second-Order Optical Nonlinearity of Push-Pull Bisdithiolene Nickel Complexes 165

Chin-Ti Chen, Sish-Yuan Liao, Kuan-Jiuh Lin, and Long-Li Lai

Exciton Bandwidth and Coupling to Intramolecular Phonons in PTCDA 171

M.H. Mennessy, Z.G. Soos, V. Bulovic, and S.R. Forrest

"Advantages of Modal Dispersion Phase-Matching and Materials Requirements for Polymerie Devices Using Efficient Second-Harmonic Generation at Telecommunication Wavelength 179

Matthias L. Jäger, Vincent Ricci, Wook-Rae Cho, Michael T.Q. Canva, and George I. Stegeman

Recent Progress of Electro-optic Polymers for Device Applications 193

Alex K-Y. Jen, Qing Yang, Seth R. Marder, Larry R. Dalton, and Ching-Fong Shu

'Characterizing and Circumventing Intermolecular Electrostatic Interactions in Highly Electro-optic Polymers 199

Aaron W. ttarper, Jingsong Zhu, Mingqian He, Larry R. Dalton, Sean M. Garner, and William H. Steier

Electronic Properties of a Novel Class of Conjugated Systems: Transition-Metal-Substituted Oligothiophenes 211

L. Lancellotti, R. Tubino, S. Luzzati, E. Licandro, S. Maiorana, and A. Papagni

"New Photopolymers Based on Two-Photon Absorbing Chromophores and Application to Three-Dimensional Microfabrication and Optical Storage 217

B.H. Cumpston, J.E. Ehrlich, L.L. Erskine, A.A. Heikai, Z-Y. Hu, I-Y.S. Lee, M.D. Levin, S.R. Marder, DJ. McCord, J.W. Perry, H. Röckei, M. Rumi, and X-L. Wu

Invited Paper

VII

"Conjugated Polymer-Based Nanocomposites for Photonics Applications 227

P.M. Prasad, N. Deepak Kumar, Manjari Lal, and Mukesh P. Joshi

Optical Limiting Processes in Derivatized Fullerenes and Porphyrins/Phthalocyanines 237

R. Kohlman, V. Klimov, X. Shi, M. Origorova, B.R. Mattes, D. McBranch, H. Wang, F. Wudl, J-L. rtogues, and W. Moreshead

'Synthesis and Nonlinearity of Triene Chromophores Containing the Cyclohexene Ring Structure 243

Susan Ermer, Steven M. Lovejoy, Doris S. Leung, tlope Warren, Christopher R. Moylan, and Robert J. Twieg

Multifunctional Hyperstructured Molecules 255 T. Wada, Y. Zhang, T. Aoyama, Y. Kubo, and ti. Sasabe

Synthesis of a New Class of Polyphenylated Phthalocyanines and Metallophthalocyanines 265

Christopher J. Walsh and Braja t\. Mandat

Study on the Relations of Structure and the Ultrafast Optical Kerr Effect of Polynitriles 271

Q. Wang, Y.Y. Li, W.W. Pei, Y.K. He, C.Q. Luo, tl.Y. Chen, L. hin, C.f. Wang, and Y.ti. Zou

Radiative Decay of Excitons in Model Aggregates of 7t-Conjugated Oligomers .# ; . . 277

Eric S. Manas and Frank C. Spano

Synthesis of New Multifunctional Polymers Incorporating Bis-(Diphenylamino)Diphenylpolyene Moieties 283

C.W. Spangler, T. Faircloth, E.H. Elandaloussi, and B. Reeves

PART III: CONDUCTING AND ELECTROACTIVE POLYMERS AND MATERIALS

'Electronic Structure and Optical Response of Electroluminescent Conjugated Polymers 293

J-L. Bredas, J. Cornil, D. Beljonne, D.A. dos Santos, Z. Shuai, and R. Silbey

'An Emulsion Poiymerization Process for Soluble and Electrically Conductive Polyaniline 305

P.J. Hinten, Y. Ding, CR. Graham, J. Liu, and E.E. Remsen

Modulation of the Electronic Properties in Polydithienothiophene Materials 317

C. Arbizzani, M. Catellani, S. Luzzati, and M. Mastragostino

*lnvited Paper

VIII

Design and Synthesis of New Conjugated Porphyrin Copolymers for Optical-Electronic Applications 323

Biwang Jiang, Szu-Wei Yang, Phuong T. Lam, and Wayne E. Jones, Jr.

Structural Approach to Improve the Response Characteristics of Copper Phthalocyanine Thin-Film-Based N0 2 Gas Sensor 329

Tadashi Nagasawa, Kenji Murakami, and lienzo Watanabe

Electrical Rectification by a Molecule of Hexadecylquinolinium Tricyanoquinodimethanide 335

R.M. Metzger, B. Chen, D. Vuillaume, U. tlöpfner, J.W. Baldwin, T. Kawai, H. Tachibana, H. Sakurai, M. V. Lakshmikantham, and M.P. Cava

Solvato-Controlled Doping of Conducting Polymers: Enhanced Stability in Silver-Triflate-Doped Films 341

Michael V. Lauritzen and Steven tioldcroft

'Synthesis of Conjugated Polymers by Vapor-Deposition Polymerization 347

Chain-Shu tisu and Ting-Li hin

Double-Strand Polyaniline as a Molecular Quasi-Memory to Chemical Stimuli 359

Qowri P. Kota, Linfeng Sun, tluaibing Liu, and Sze C. Yang

Effect of Morphology on the Electrical Transport Properties of Polyaniline Films for Electronic Applications 365

S.S. Hardaker, t\. Eaiprasertsak, J. Yon, R.V. Qregory, and O.X. Tessema

Melt Processed Electrically Conductive Binary and Ternary Immiscible Polymer/Polyaniline Blends 371

M. Zilberman, A. Siegmann, and M. riarkis

Thermoreversible Gels of Polyaniline: Viscoelastic and Electrical Properties 377

O.T. Ikkala, T. Vikki, J. Ruokolainen, P. tliekkataipale, P. Passiniemi, T. Mäkelä, and H. Isotalo

PART IV: MOLECULAR AND SUPRAMOLECULAR ENGINEERING

•Molecular Self-Assembly Routes to Optically Functional Thin Films: Electroluminescent Multilayer Structures 385

IV. Li, J.E. Matinsky, tl. Chou, W. Ma, L. Oeng, T.J. Marks, Q.E. Jabbour, S.E. Shaheen, B. tiippelen, N. Peyghambarian, J. Anderson, P. Lee, and N. Armstrong

*lnvited Paper

ix

A Scanning-Force-Microscopy Study of Block Copolymers Containing a Conjugated Segment 395

Ph. LeCIere, R. Lazzaroni, V. Parente, B. Francois, and J-L. Bredas

Multilayer Self-Assemblies as Electronic and Optical Materials 401

DeQuan Li, M. Lütt, Xiaobo Shi, and M.R. Fitzsimmons

Performances of Sexithiophene Based Thin-Film Transistor Using Self-Assembled Monolayers s 407

J. Collet, O. Tharaud, C. Legrand, A. Chapoton, and D. Vuillaume

'Determination of the Internal Electric Field in the Electro-optic Active Layer of Multilayer Polymer Stacks 413

S. Qrossmann, T. Weyrauch, and W. Haase

Controlling Materials Architecture on the Nanometer Scale: PPV Nanocomposites Via Polymerizable Lyotropic Liquid Crystals 419

Ryan C. Smith, Hai Deng, Walter M. Fischer, and Douglas L. Gin

High Mobility and Liquid-Phase Processable Organic Semiconductors 425

U.E. Katz, J. Laquindanum, and A.J. Lovinger

Electrical Characterization of Thin Single Crystals of Sexithiophene 431

C. Daniel Frisbie, Eric L. Granstrom, and Michael J. Loiacono

Novel Liquid-Crystal Displays Based on Highly Polarized Photoluminescent Polymer Films 435

Christian Sarwa, Andrea Montali, Cees Bastiaansen, Christoph Weder, and Paul Smith

Electro-optic Effects in Nanophase Polymer Dispersed Liquid-Crystal Systems 441

R.S. Blacker, K.L. Lewis, I. Mason, I. Sage, and K. Webb

Structural And Electronic Properties of Self-Assembled Supramolecular Grid Structures: Doping of Supramolecular Thin Films 447

J. Hassmann, C.Y. Hahn, O. Waldmann, E. Volz, H-J. Schleemilch, n. Hallschmid, P. Müller, G.S. Hanan, D. Volkmer, U.S. Schubert, J-M. Lehn, H. Mauser, A. Hirsch, and T. Clark

Photochromic Liquid Hydrogels as Hosts for Holographie Materials 453

R.L. White, Y.Y. Hsu, T.M. Cooper, J.D. Qresser, D.L. Wise, and D.J. Trantolo

Invi ted Paper

PARTV: ORGANIC METALS AND MAGNETIC MATERIALS

"Organic/Inorganic Langmuir-Blodgett Films Based on Metal Phosphonates 461

Daniel R. Talham, Qail E. Fanucci, Melissa A. Petruska, and Candace T. Seip

AC Susceptibility Studies of New and Familiär Magnetic Molecular Solids 471

Roger D. Sommer, Brenda J. Körte, Scott P. Seilers, and Gordon T. Yee

Magnetic Properties of Organic Ferromagnetic TDAE-CÖO Single Crystals and Thin Films 477

M. Tokumoto, Y. Tsubaki, K. Pokhodnya, Y. Sakakibara, A. Omerzu, D. Mihailovic, and T. Uchida

Functionalized Tetrathiafulvalene Derivatives and Their Radical Cation Salts: Synthesis and X-ray Crystal Structures 483

Martin R. Bryce, Adrian J. Moore, Andrei S. Batsanov, Antony Chesney, Cläre L. Wood, and Judith A.K. Howard

Electronic Structure of the Organic Metals K-ET2CU(SCN)2 and K-ET2Cu[N(CN>2]Br Measured by Soft X-ray Emission and Soft X-ray Absorption 489

Cristian B. Stagarescu, L-C Duda, Kevin E. Smith, J.H. Quo, J. Piordgren, R. tladdon, J.S. Brooks, and D. Jerome

Preparation of CÖO Charge-Transfer Complexes With Organic Donor Molecules and Alkali Doping 495

A. Otsuka, O. Saito, S. Hirate, S. Pac, T. Ishida, A.A. Zakhidov, and K. Yakushi

PART VI: POSTER PRESENTATIONS

Metal Complex Polymers for Electroluminescent Applications 503

X.T. Tao, H. Suzuki, Y.D. Zhang, T. Watanabe, S. Miyata, T. Wada, and tl. Sasabe

Investigations on the Aluminum/Para-Hexaphenyl Interface in Light-Emitting Devices 509

n. Koch, L-M. Yu, J-L. Ouyaux, Y. Morciaux, O. Leising, J-J. Pireaux, and G. Demoustier

Characterization of Poly(Paraphenylene) Subjected to Different Heat Treatment Temperatures 515

S.D.M. Brown, M.J. Matthews, A. Marucci, M.A. Pimenta, M.S. Dresseihaus, M. Endo, and T. Hiraoka

Invited Paper

*

'Morphological Effects in the Chemical and Photoluminescent Behavior of Aluminum Tris(8-Hydroxyquinoline) (Alq3) 521

K.A. tiigginson, X-M. Zhang, and F. Papadimitrakopoulos

Fabrication of Polymer Light-Emitting Diodes by Layer-by-Layer Complexation Technique 527

Jaehyun Kim, Kethinni O. Chittibabu, Mario J. Cazeca, Woohong Kim, Jayant Kumar, and Sukant K. Tripathy

Optical Properties of Distyrylbenzene Chromophores and Their Segmented Copolymers 533

Mchoias Benfaremo, Daniel J. Sandman, Sukant Tripathy, Jayant Kumar, Ke Yang, Michael F. Rubner, and Cormac Lyons

Light-Emitting Diodes With Voltage-Switchable Coiors From Semiconducting Polymer/Polymer Heterojunctions 539

Xuejun Zhang and Samson A. Jenekhe

Toward Electrically Pumped Organic Diode Lasers: Electroluminescence of Proton Transfer Polymers 545

Xuejun Zhang, Richard M. Tarkka, Samson A. Jenekhe, and Joseph B. Schienoff

•Electroactive and Photoactive Rod-Coil Block Copolymers: Self-Organization and Photophysical Properties 551

X. Linda Chen and Samson A. Jenekhe

Concentration Dependence of Photoluminescence and Electroluminescence in 2,5 Bis[2'-(4"-Hydroxyhexanol Benzyl)-1'-Ethyl]3,4-Dibutyl Thiophenes 557

S. Blumstengel, I. Sokolik, R. Dorsinville, D. Voloschenko, M. He, L-C. Chien, and O. Lavrentovich

lonic Complexes of Conjugated Oligoquinolines 563 Ashok S. Shetty and Samson A. Jenekhe

Cascade Connected Organic EL Diodes for Multicolor Emission 569

Yutaka Ohmori, riorio Tada, Yoshitaka Kurosaka, Akihiko Fujii, and Katsumi Yoshino

Control of Emissive Layer Interfaces With Inorganic Thin Layer Between 8-Hydroxyquinoline Aluminum and Diamine Layers in Organic EL Diode 575

Yutaka Ohmori, Yoshitaka Kurosaka, riorio Tada, Akihiko Fujii, and Katsumi Yoshino

Synthesis and Photophysical Properties of Some Conjugated Polymers Functionalized With Ruthenium Polypyridine Complexes 581

Po King Ng, Wai Yue rlg, Xiong Qong, and Wai Kin Chan

XII

Low-Pressure Organic Vapor-Phase Deposition of Small Molecular Weight Organic Device Structures 587

M.A. Baldo, V.O. Kozlov, P.E. Burrows, S.R. Forrest, V.S. Ban, B. Koene, and M.E. Thompson

Photolithographic Patterning of Vacuum-Deposited Organic Light-Emitting Devices 593

F.F. Tian, P.E. Burrows, V. Bulovic, and S.R. Forrest

Moisture Effect on Polythiophene Electroluminescence 599 Tsu-Chien Weng, Bih-Yaw Jin, Ding-Kuo Ding, and Mitsuhiko Sakakibara

Design of Fiat-Panel Displays Based on Organic Light-Emitting Devices 605

O. Qu, P.E. Burrows, and S.R. Forrest

Effect of Impurity Ions and Permanent Dipoles for Device Performance of Thin-Film Electroluminescent Diodes 611

Tetsuo Tsutsui, Masayuki Yahiro, and Dechun Zou

Light-Emitting Devices With Molecularly-Doped Polymer Layers: A New Diamine as a Hole-Transporting Molecule 617

V. Fattori, M. Cocchi, F. Di Marco, G. Giro, J. Kallnowski, P. Dembech, Q. Fabbri, and G. Seconi

Nanostructure of Electrically Conducting Polyaniline Prepared by a Novel Emulsion Polymerization Process 623

J. Liu, P.J. Hinten, and CR. Graham

Injection Efficiency From Various Metals Into Trap-Free Molecularly-Doped Polymers Evaluated From Combined Analysis of Current-Voltage and Time-of-Flight Drift Mobility Data 629

M. Abkowitz, J.S. Facci, and J. Rehm

Electrical Properties of Au/Polymer Interfaces 635 A. Ioannidis, J.S. Facci, and M. Abkowitz

Hexacyanodiazahexadiene (HCDAH) Dianion as a Component of Conducting Complexes 641

Hideki Yamochi, Kiyohiko Tsutsumi, Takeshi Kawasaki, and Gunzi Saito

Synthesis and Incorporation of Thienylene Vinylene Oligomers in Main-Chain Copolymers 647

L.Q. Madrigal, E.H. Elandaioussi, and C.W. Spangler

Corrosion Protection of Metals by Conductive Polymers III: Improved Performance and Inhibition in NaCI 653

Wei-Kang hu, Ronald L. Elsenbaumer, T. Chen, and V.O. Kulkarni

XÜi

Organic Metals and Superconductors: Facile Synthetic Methodologies Bypassing Coupling and Chromatography 659

Ronald L. Meiine and Ronald L. Elsenbaumer

Synthesis, Characterization, and Properties of Conjugated Poly(l -Alkyl-2,5-Pyrrylene Vinylene) 665

In Tae Kim and Ronald L. Elsenbaumer

Conjugated Polymers Containing Pendant Terpyridine Complexes as Photoactive Sensors 671

Biwang Jiang, Shailesh Sahay, and Wayne E. Jones, Jr.

Self-Assembling Functionalizable Polydiacetylenes and Their Optical Properties 677

M. Sukwattanasinitt, X. Wang, D-C. Lee, L. Li, J. Kumar, S.K. Tripathy, and D.J. Sandman

New Polydiacetylenes With Visible Chromophoric Side Groups 683

James L. Foley, Venkataramani Shivshankar, and Daniel J. Sandman

Investigation of Organic-Organic Interfaces by Time-Resolved Photocurrent, Electrochemical, and Photoemission Techniques 689

Liang-Bih Lin, M. Gary Mason, Ralph H. Young, Deniz E. Schildkraut, Paul M. Borsenberger, and Samson A. Jenekhe

Observation of the Temperature Dependence of the Dynamics of Photoexcited States in Pristine Tris(8-Hydroxyquinoline) Aiuminum (Alq3) 695

Richard Priestley, Ardie D. Walser, and Roger Dorsinville

Temperature Dependence of the Electrical Conductivity of Poly(Benzo[l,2-b:4,5-b'] Dithiophene-4,8-Diyl Vinylene) and Poly(Dodecylthiophene) 701

R.C. Hyer, R.Q. Pethe, T. Yogi, 5.C. Sharma, Martin Pomerantz, J. Wang, R.L. Meline, R.L. Elsenbaumer, and R.C. McCullough

Electron Transfer at the n-lnP | Poly(Pyrrole) Interface 707 Mark C. Lonergan, Christopher T. Cooney, and James A. Myers

The Dielectric Response of a 8-Hydroxyquinoline Aiuminum Used in Multilayer Organic Devices 713

A. Niko, C. tiochfilzer, T. Jost, W. Qraupner, and O. Leising

UV Photoemission Study of Interfaces Related to Organic EL Devices 719

Kiyoshi Sugiyama, Kazuhiko Seki, Eisuke Ito, Yukio Ouchi, and Hisao Ishii

XIV

Poly(2-Butyne-1,4-Diyl)s as Precursors to Novel Substituted Polyacetylenes 725

Steven K. Pollack and Ashebir Fiseha

Polymerie Complexes of Polyaniline as Anticorrosion Coatings 733

R.J. Racicot S.C. Yang, and R. Brown

Nanocomposites of Metallophthalocyanines and Conjugated Polymers 741

Shujian Yi and Samson A. Jenekhe

Latexlike Water-Borne Polyaniline for Coating Applications 747

tluaibing Liu, Robert Clark, and Sze C. Yang

Thermally Stimulated Luminescence of Naphthyl-Substituted Benzidine Derivative and Tris-8-(Hydroxyquinoline) Aluminum With and Without Metal Layers 753

E.W. Forsythe, D.C. Morton, and Y. Qao

Structural Properties of Self-Assembled Poly(Zinc-Bisquinoline) 759

D.L. Thomsen, III, T. Phely-Bobin, and F. Papadimitrakopoulos

Preparation of Chromophoric Dipolar Dendrons as Second-Order Nonlinear Optical Material 765

S. Yokoyama and S. Mashiko

Modification of Spontaneous Emission From Periodic Array of Spherical Polystyrene Particles Containing Fluorescent Molecules 771

T. Yamasaki and T. Tsutsui

Femtosecond Optical Nonlinearity in the Squarylium Dye J-Aggregates 777

M. Furuki, L.S. Pu, F. Sasaki, S. Kobayashi, and T. Tani

Femtosecond Pump and Probe Spectroscopy on Poly(Para-Phenylenes) 783

W. Qraupner, Q. Cerullo, Q. Kranzeibinder, O. Lanzani, S. Stagira, M. rilsoli, S. De Silvestri, and Q. Leising

Magnetic Field Effect in Highly Pure, Highly Fluorescent Conjugated Polymers 789

W. Qraupner, M. Sacher, M. Qraupner, C. Zenz, Q. Qrampp, A. tlermetter, and Q. Leising

Design, Methodology, and Preparation of Novel Polymers for Nonlinear Optics 795

K.Q. Chittibabu, L. Li, S. Balasubramanian, X. Wang, M. Sukwattanasinitt, K. Yang, J. Kumar, D.J. Sandman, and S.U. Tripathy

XV

Characterizing the NLO Chromophore Orientation of Polymerie Film by Electroabsorption Spectroscopy 801

Ke Yang, Xiaogong Wang, Woohong Kim, Aloke Jain, Lian Li, Jayant Kumar, and Sukant Tripathy

Second-Order Nonlinear Optical Polymer by Directed Lithiation of Polyethersulfone 807

Hamid E. McCarron, Christopher J. Waish, Rajashree Sen, and Braja K. Mandat

Synthesis of High-Tg Azo Polymer and the Optimization of Its Poling Condition for Stable EO System 813

Takashi Fukuda, tiiro Matsuda, Takao Shiraga, Nasao Kato, and tiachiro Hakanishi

Very Large Second-Order Nonlinear Optical Activity Shown by Heterocycle-Based Dicyanomethanide Zwitterions 819

A. Abbotto, S. Bradamante, A. Facchetti, O.A. Pagani, I. Ledoux, and J. Zyss

Magnetic Properties of a Binary Mixture of Paramagnetic Metallomesogens 823

Y. Shimizu, S. Tantrawong, M. Yoshida, and T. Sugino

Control of the Luminescence Properties in Polythiophene Solutions by Interring Rotational Disorder 829

S. Luzzati, O. Bongiovanni, M. Catellani, M.A. Loi, A. Miiani, A. Mura, and A. Piaggi

New Base-Dopable Well-Defined Poly-2,7-Fluorene Derivatives 835

M. Ranger and M. Ledere

Magnetic Supramolecular Grid Structures: Intramolecular Coupling of Four Separate Spins 841

O. Waldmann, J. Hassmann, R. Hoch, P. Müller, O.S. Hanan, D. Volkmer, U.S. Schubert, and J-M. Lehn

Physical Characterization and Electrical Transport in End-Group Functionalized Self-Assembled Monolayers 847

J. Collet, D. Vuillaume, M. Bonnier, O. Bouioussa, F. Rondeiez, J.M. Gay, K. Kham, and C. Chevrot

Ab Initio Calculations on Porphyrins in the Condensed Phase 853

P.n. Day, Z. Wang, and R. Pachter

Deformed Helix Ferroeiectric Liquid Crystals With Large Tilt Angles in Optically Addressed Spatiai Light Modulators for Dynamical Holography Applications 859

L.A. Beresnev, W. Haase, A.f. Onokhov, W. Dultz, M.V. Isaev, H.A. Feoktistov, N.L. Ivanova, E.A. Konshina, A.n. Chaika, V.A. Berenberg, and T. Weyrauch

XVi

Structural Properties of Hexaphenyl Powder Under High Pressure 867

S. Quha, W. Qraupner, R. Resel, M. Chandrasekhar, U.R. Chandrasekhar, and O. Leising

Electronic Properties of Poly(Poro-Phenylenes) Under High Pressure 873

W. Qraupner, S. Quha, S. Yang, M. Chandrasekhar, U.R. Chandrasekhar, O. Leising, U. Schert, and K. Müllen

Doping of Polyaniline by Corona Discharge 879 Aldo E. Job, Jose A. Qiacometti, and Luiz ti. C. Mattoso

Polarized Light-Induced Anisotropy in Polymer Films Doped With Azo Dyes in the Photostationary State Studied by IR Spectroscopy 885

K. Tawa, K. Kamada, T. Sakaguchi, and K Ohta

Thin Film of Conjugated Schiff-Base as Ultrahigh Density Data-Storage Material 891

W.J. Yang, Q.C. Yang, tl.Q. hu, ti.Y. Chen, S.M. tlou, L.F. Ma, tl.X. Zhang, Z.Q. Xue, and S.J. Fang

Pressure Dependence of Photoluminescence of Oligothiophenes 897

L. Rossi, W. Qraupner, R. Resel, F. Meghdadi, Q. Leising, F. Sannicoio, T. Benincori, Q. Lanzani, and R. Tubino

Superconductivity of K-(BEDT-TTF)2Cu[N(CN)2]Br: Isotope Effect Revisited 903

M. Tokumoto, n. Kinoshita, Y. Tanaka, and ti. Anzai

Morphology Dependence of the Optical Properties of DALM Related Materials 909

K.B. Wagner-Brown, K.F. Ferris, J.L. Kiel, and R.A. Albanese

Thermaliy Stable Iridescent Colors of a New Low-Molecular-Weight Cholesteric Compound in the Solid State and the Application to Full-Color Recording 915

riobuyuki Tamaoki, Alexander V. Farfenov, Atsushi Masaki, and tliro Matsuda

Structure and Physical Properties of EDT-TTF Salts 921 Tetsuo Kondo, Lyudmila A. Kushch, tlideki Yamochi, and Qunzi Saito

A Study on Langmuir Monolayers of Methacrylate Homo-and Copolymers Derivatized With Disperse Red Dyes 927

Anantharaman Dhanabalan, Debora Balogh, Carlos Jose Leopoldo Constantino, Antonio Riul, Jr., Osvaldo n. Oliveira, Jr., and Jose A. Qiacometti

XVII

Optica! Characterization of C6o Organic Semiconductor and Bilayers 933

J.P. Rainho, L. Santos, and A.A. Kharlamov

IR Studies on C6o Polymers 937 K. Kamaräs, L. Forrö, and Y. Iwasa

Author Index 943

Subject Index 949

xviii