| CROSS-DISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY |
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Effect of Valence Band Tail Width on the Open Circuit Voltage of P3HT:PCBM Bulk Heterojunction Solar Cell: AMPS-1D Simulation Study |
| Bushra Mohamed Omer1,2** |
1Department of Physics, College of Science and Arts, Taif University, Ranyah 21975, Saudi Arabia
2Department of Applied Physics and Mathematics, Faculty of Applied Science and Computer, Omdurman Ahlia University, Omdurman 786, Sudan
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| Cite this article: |
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Bushra Mohamed Omer 2015 Chin. Phys. Lett. 32 088801 |
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Abstract The effect of the valence band tail width on the open circuit voltage of P3HT:PCBM bulk heterojunction solar cell is investigated by using the AMPS-1D computer program. An effective medium model with exponential valence and conduction band tail states is used to simulate the photovoltaic cell. The simulation result shows that the open circuit voltage depends linearly on the logarithm of the generation rate and the slope depends on the width of the valence band tail. The open circuit voltage decreases with the increasing width of the band tail. The dark and light ideality factors increase with the width of the valence band tail.
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Received: 13 January 2015
Published: 02 September 2015
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| PACS: |
88.40.jr
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(Organic photovoltaics)
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88.40.H-
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(Solar cells (photovoltaics))
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85.60.-q
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(Optoelectronic devices)
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85.30.De
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(Semiconductor-device characterization, design, and modeling)
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81.05.Fb
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(Organic semiconductors)
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