| 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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