Organic photovoltaic cells with copper(Ⅱ) tetra-methyl substituted phthalocyanine

被引:2
|
作者
许宗祥 [1 ]
Roy V. A. L [2 ]
机构
[1] Department of Chemistry, South University of Science and Technology of China
[2] Center of Super Diamond and Advanced Films (COSDAF), Department of Physics and Materials Science, City University of Hong Kong
关键词
organic photovoltaic cell; copper(II) tetra-methyl substituted phthalocyanine; π–π; stacking; GIXRD;
D O I
暂无
中图分类号
O627.12 [铜族金属有机化合物];
学科分类号
070303 ; 081704 ;
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 A) than that of CuPc(;3.8 A). The efficiency improvement is attributed to the enhanced carrier mobility of CuMePc thin film(1.1×10 3cm2/V·s) and better film morphology by introducing methyl groups into the periphery of CuPc molecule.
引用
收藏
页码:537 / 540
页数:4
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