| Effects of optical interference and annealing on the performance of poly （3-hexylthiophene）： fullerene based solar cells |
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| 引用本文： | 游海龙,张春福.Effects of optical interference and annealing on the performance of poly （3-hexylthiophene）： fullerene based solar cells[J].中国物理 B,2009,18(5):2096-2100. |
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| 作者姓名： | 游海龙 张春福 |
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| 作者单位： | School Of Microelectronics, Xidian University,
Xi'an
710071, China;Key Laboratory of Wide Band-Gap Semiconductor Materials
and Devices, Xi'an 710071, China;Department of Electrical and Computer Engineering,
National University of Singapore, Singapore 117576 |
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| 摘 要： | <正>In this paper,the effects of optical interference and annealing on the performance of P3HT:PCBM based organic solar cells are studied in detail.Due to the optical interference effect,short circuit current density(JSC) shows obvious oscillatory behaviour with the variation of active layer thickness.With the help of the simulated results,the devices are optimized around the first two optical interference peaks.It is found that the optimized thicknesses are 80 and 208 nm.The study on the effect of annealing on the performance indicates that post-annealing is more favourable than pre-annealing.Based on post-annealing,different annealing temperatures are tested.The optimized annealing condition is 160℃for 10 min in a nitrogen atmosphere.The device shows that the open circuit voltage V-（OC） achieves about 0.65V and the power conversion efficiency is as high as 4.0%around the second interference peak.
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| 关 键 词： | organic solar cell optical interference annealing |
| 收稿时间： | 9/1/2008 12:00:00 AM |
Effects of optical interference and annealing on the performances of poly (3-hexylthiophene): fullerene based solar cells |
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| You Hai-Long and Zhang Chun-Fu.Effects of optical interference and annealing on the performances of poly (3-hexylthiophene): fullerene based solar cells[J].Chinese Physics B,2009,18(5):2096-2100. |
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| Authors: | You Hai-Long and Zhang Chun-Fu |
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| Institution: | You Hai-Long and Zhang Chun-Fu(1 School Of Microelectronics, Xidian University, Xi＇an 710071, China ; b)Key Laboratory of Wide Band-Gap Semiconductor Materials and Devices, Xi＇an 710071, China; c) Department of Electrical and Computer Engineering, National University of Singapore, Singapore 117576) |
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| Abstract: | In this paper, the effects of optical interference and annealing on
the performance of P3HT:PCBM based organic solar cells are studied in
detail. Due to the optical interference effect, short circuit
current density (JSC) shows obvious oscillatory
behaviour with the variation of active layer thickness. With the
help of the simulated results, the devices are optimized around the
first two optical interference peaks. It is found that the optimized
thicknesses are 80 and 208 nm. The study on the effect of annealing
on the performance indicates that post-annealing is more
favourable than pre-annealing. Based on post-annealing,
different annealing temperatures are tested. The optimized annealing
condition is 160* |
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| Keywords: | organic solar cell optical
interference annealing |
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