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1. ORGANIC SOLAR CELLS
ABHAS DASH
ECE-D
1141015217
ITER,SOAU
March 17, 2015
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Under the Guidance of : Mr. Suraj Kumar Das

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3. CONTENTS
• A Fact
• About Photovoltaic cell
• Why organic solar cells ?
• Which Polymers are used ?
• Structure of Organic Solar Cell
• Application of OSC
• Manufacturing costs
• Environmental Impact
• Disadvantages
• References
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4. A FACT :
• Earth receives enormous
energy to fulfill the yearly
demand of energy in less
than an hour.
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5.  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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6. 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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7. Polymer used for organic solar cells :
•FBJs (Fullerene bulk heterojunctions)
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8. Commonly used DONORS ( p-type Materials):
• MDMO-PPV : Poly[2-methoxy-5-(3′,7′-
dimethyloctyloxy)-1,4-phenylenevinylene]
• F8T2 : Poly(9,9-dioctylfluorene-co-
bithiophene
• PFDTBT : Poly{[2,7-(9,9-bis-(2-ethylhexyl)-
fluorene)]-alt-[5,5-(4,7-di-2′-thienyl-2,1,3-
benzothiadiazole)]}
• Commonly used Acceptors (n-type Materials):
• PCBM-60 : Phenyl-C61-butyric acid methyl
ester (3% efficiency)
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9. •BHJs are used as active layers
•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 March 17, 2015
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10. The Structure of a Single-Layer & a Multilayer
Organic Solar Cell
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11. Organic Solar Cell Application Fields :
 Personal mobile phone charger
 Small home electronics and mobile electronics
attachment
Power generation
BIPV (Building –integrated photovoltaic) such as
building’s exterior wall, window.
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12. Manufacturing Process and
Cost :
• 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.
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13. 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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14. DISADVANTAGES:
•Low efficiency (5% compared to
15% of silicon cells)
•Short lifetime.
•Commercially not available
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15. 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,
DOI: 10.1109/ACTEA.2009.5227913, Publication Year:2009,
Pages:427-431.
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