Enhanced Photovoltaic Performance of Polymer Solar Device by Inserting Nanocrystal Titanium Oxide Interlayer
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概要
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To improve the power conversion efficiency (PCE) of polymer solar devices, we introduced a highly crystalline nanocrystal titanium oxide layer (nc-TiO2 layer) that was formed by spin-coating a dispersed liquid of precrystallized titanium oxide nanoparticles. The nc-TiO2 layer can be formed more easily and with a higher reproducibility than the TiOx layer formed by a conventional low-temperature sol--gel method. By inserting the nc-TiO2 layer, the PCE was significantly improved from 2.70 to 3.91%. The nc-TiO2 layer enabled a larger decrease in internal resistance than the TiOx layer; thus, the nc-TiO2 layer acts as an effective hole-blocking layer and optical spacer.
- 2012-09-25
著者
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Ueda Yasukiyo
Graduate School Of Science And Technology Kobe University
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Sasaki Kenichi
Research Center for Photovoltaic Technologies, National Institute of Advanced Industrial Science and Technology, Tsukuba, Ibaraki 305-8568, Japan
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Yamanari Toshihiro
Research Center for Photovoltaic Technologies, National Institute of Advanced Industrial Science and Technology, Tsukuba, Ibaraki 305-8568, Japan
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Takano Syogo
New Technology Research Laboratory, Sumitomo Osaka Cement Co., Ltd., Funabashi, Chiba 274-8601, Japan
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Yoshida Yuji
Research Center for Photovoltaic Technologies, National Institute of Advanced Industrial Science and Technology, Tsukuba, Ibaraki 305-8568, Japan
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Ueda Yasukiyo
Graduate School of Engineering, Kobe University, 1-1 Rokko, Nada, Kobe 657-8501, Japan
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UEDA Yasukiyo
Graduate School of Engineering, Kobe University
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