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题名: Photovoltaic and electroluminescence characters in hybrid ZnO and conjugated polymer bulk heterojunction devices
作者: Liu JP (Liu Jun-Peng);  Qu SC (Qu Sheng-Chun);  Xu Y (Xu Ying);  Chen YH (Chen Yong-Hai);  Zeng XB (Zeng Xiang-Bo);  Wang ZJ (Wang Zhi-Jie);  Zhou HY (Zhou Hui-Ying);  Wang ZG (Wang Zhan-Guo)
发表日期: 2007
摘要: We report electroluminescence in hybrid ZnO and conjugated polymer poly[2-methoxy-5-(3', 7'-dimethyloctyloxy)-1,4-phenylenevinylene] (MDMO-PPV) bulk heterojuriction photovoltaic cells. Photolummescence quenching experimental results indicate that the ultra,fast photoinduced electron transfer occurs from MDMO-PPV to ZnO under illumination. The ultrafast photoinduced electron transfer effect is induced because ZnO has an electron affinity about 1.2 eV greater than that of MDMO-PPV. Electron 'back transfer' can occur if the interfacial barrier between ZnO and MDMO-PPV can be overcome by applying a substantial electric field. Therefore, electroluminescence action due to the fact that the back transfer effect can be observed in the ZnO:MDMO-PPV devices since a forward bias is applied. The photovoltaic and electroluminescence actions in the same ZnO:MDMO-PPV device can be induced by different injection ways: photoinjection and electrical injection. The devices are expected to provide an opportunity for dual functionality devices with photovoltaic effect and electroluminescence character.
KOS主题词: Solar cells;  solar generators
刊名: CHINESE PHYSICS LETTERS
专题: 中国科学院半导体研究所(2009年前)_期刊论文

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推荐引用方式:
Liu, JP (Liu Jun-Peng); Qu, SC (Qu Sheng-Chun); Xu, Y (Xu Ying); Chen, YH (Chen Yong-Hai); Zeng, XB (Zeng Xiang-Bo); Wang, ZJ (Wang Zhi-Jie); Zhou, HY (Zhou Hui-Ying); Wang, ZG (Wang Zhan-Guo) .Photovoltaic and electroluminescence characters in hybrid ZnO and conjugated polymer bulk heterojunction devices ,CHINESE PHYSICS LETTERS,MAY 2007,24 (5):1350-1353
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