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ORGANIC SOLAR CELLS

Presented by – Rahul Bibave(ME16f15f011)

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CONTENTS

• About Photovoltaic cell• Why organic solar cells ?• Structure of Organic Solar Cell• Application of OSC• Manufacturing costs• Environmental Impact • Disadvantages • References

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Classical photovoltaic solar cells based on inorganic semiconductors (Silicon) was developed in 1954 by Chapin, Fuller and Pearson in the Bell Labs.

•Some of its demerits :

Silicon is expensive.

Not flexible

Limited availability of inorganic material.

ABOUT PHOTOVOLTAIC CELL

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WHY ORGANIC SOLAR CELLS ?

Ease of Processing

Mechanical flexibility

Economically viable

Safer environment

Unlimited availability

Less expensive than inorganic materials (Si).

Compatibility (thin cells)

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•Optical photons absorbed and creates exitons (bound electron-hole pair).•The negative electrode is Aluminum.•Indium Tin Oxide(ITO) is the common transparent electrode.•The substrate is glass.•Current is generated when the resulting free electrons and holes are transported through the donor polymer and acceptor fullerene, respectively, to the electrodes.

Structure of Organic Cells

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Working

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Types of OSC

1. Single layer OSC 2. Double layer OSC

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Single layer OSC

It has only one active layer between cathode and anode.

The donar and acceptor polymers are merged.

So distance between electron and hole pair is decreased.

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• OSCs are easily manufactured.

• Molecules are easier to work with and can be used with thin film substrates that are 1000 times thinner than Silicon cells.

• This fact reduce the cost production significantly.

Manufacturing Process and Cost :

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ENVIRONMENTAL IMPACT

•Less energy consumption in manufacturing OSC than the Inorganic solar cells.

•An extensive use of OSC contribute to the increased use of solar power globally and make renewable energy sources friendlier.

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ADVANTAGES

Low cost.

savings on materials.

Low weight and flexibility of the PV modules.

Short energy payback time.

Low environmental impact during manufacturing.

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Low efficiency (5% compared to 15% of silicon cells).

Short lifetime.

Commercially not available

DISADVANTAGES

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Personal mobile phone charger

Small home electronics and mobile electronics attachment

Power generationBIPV (Building –integrated photovoltaic) such as building’s exterior wall, window.

Applications

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REFERENCES

[1] Askari Mohammad Bagher“Introduction to Organic Solar Cells”, Department of Physics, Azad University, North branch, Tehran, Iran, www.sciepub.com[2] Liming Liu, Guangyong Li“Modeling and Simulation of Organic cell”, Nanotechnology Materials and Devices Conference (NMDC) 2010 IEEE.DOI: 10.1109/NMDC.2010.5649633, Publication Year : 2010,Pages: 334-338[3] Chakaroun, M, Ratier,B, Milton, A“Surface modeling of Organic cells”, Advances in computational tools for enggineering applications, 2009, ACTEA 2009,

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THANK YOU..!..