Study of organic solar cells with stacked bulk heterojunction structure |
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| Authors: | Xin-fang Zhang Zheng Xu Su-ling Zhao Fu-jun Zhang Yan Li Chun-yu Wu and Yue-ning Chen |
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| Affiliation: | [1]Institute of Optoelectronics Technology, Key Laboratory for Luminescence and Optical Information of Ministry of Education, Beijing Jiaotong University, Beijing 100044, China [2]Department of Physics, Liaoning University, Shenyang 110036, China |
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| Abstract: | Organic solar cells with stacked bulk heterojunction(BHJ) are investigated based on conjugated polymer. By using the solution spin-coating method, Poly2-methoxy, 5-(2'-ethyl-hexyloxy) -1,4-phenylene vinylene] (MEH-PPV) and ZnO nanoparticles (50 nm) are mixed as the optical sense layer. Ag is used as inter-layer to connect the upper BILl cell and the lower cell. The structures are ITO/PEDOT:PSS/MEH-PPV/Ag/MEH-PPV:ZnO/Al. The open circuit voltage (Voc) of a stacked cell is about 3.7 times of that of an individual organic solar cell (ITO/PEDOT:PSS/MEH-PPV/A1). The short circuit current (Jsc) of a stacked cell is increased by about 1.6 times of that of individual one. |
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| Keywords: | structures heterojunction bulk solar cells organic increased short circuit current times individual open circuit voltage PEDOT used connect upper BILl lower mixed optical sense |
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