Electron Donor and Acceptor Spatial Distribution in Structured Bulk Heterojunction Photovoltaic Devices Induced by Periodic Photopolymerization
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- 作者：Satoshi Watanabe ; Yasumasa Fukuchi ; Masako Fukasawa ; Takafumi Sassa ; Masanobu Uchiyama ; Takashi Yamashita ; Mutsuyoshi Matsumoto ; Tetsuya Aoyama
- 刊名：Langmuir
- 出版年：2012
- 出版时间：July 17, 2012
- 年：2012
- 卷：28
- 期：28
- 页码：10305-10309
- 全文大小：254K
- 年卷期：v.28,no.28(July 17, 2012)
- ISSN：1520-5827
文摘
Donor and acceptor spatial distributions were directly formed in a surface relief grating of structured bulk heterojunction (BHJ) photovoltaic devices by simple periodic photopolymerization. Enhanced photocurrents were observed in the structured BHJ photovoltaic devices and formation of the D/A spatial distribution was confirmed by Kelvin probe force microscopy. This technique enables the fabrication of structured BHJ photovoltaic devices with solution-processable organic semiconductors, and has tremendous potential for controlling D/A spatial distribution in organic optoelectronics devices.