Organic photovoltaic cells with copper (Ⅱ) tetra-methyl substituted phthalocyanine |
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引用本文: | 许宗祥,Roy V. A. L.Organic photovoltaic cells with copper (Ⅱ) tetra-methyl substituted phthalocyanine[J].中国物理 B,2013(12):533-536. |
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作者姓名: | 许宗祥 Roy V. A. L |
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作者单位: | [1]Department of Chemistry, South University of Science and Technology of China, Shenzhen 518055, China [2]Center of Super Diamond and Advanced Films (COSDAF), Department of Physics and Materials Science, City University of Hong Kong. Tat Chee Avenue. Kowloon, Hong Kong SAR, China |
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基金项目: | Project supported by the Special Funds for the Development of Strategic Emerging Industries in Shenzhen City,China(Grant No.JCYJ20120830154526537);Start-up Funding of the South University of Science and Technology of China,and the Strategic Research Grant of the City University of Hong Kong(Grant No.7002724) |
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摘 要: | Efficient heterojunction organic photovoltaic (OPV) cells are fabricated based on copper tetra-methyl phthalocyanine (CuMePc) as donor and fullerene (C60) as acceptor. The power conversion efficiency of CuMePc/C60 OPV cell (2.52%) is increased by 88% compared with that of the non-peripheral substituted copper phthalocyanine (CuPc)/C60 OPV cell (1.34%). The introduction of methyl substituent leads to stronger π–π interaction of CuMePc (~ 3.5 ?) than that of CuPc (~ 3.8 ?). The efficiency improvement is attributed to the enhanced carrier mobility of CuMePc thin film (1.1×10-3 cm2/V·s) and better film morphology by introducing methyl groups into the periphery of CuPc molecule.
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关 键 词: | 有机光伏电池 取代酞菁 铜酞菁 四甲基 能量转换效率 载流子迁移率 CuPc 周边取代 |
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