掺杂CuPc的MEH-PPV/PCBM有机太阳电池研究

A study of CuPc-doping MEH-PPV/PCBM organic photovoltaic devices

采用旋涂法制备了掺杂铜酞菁(CuPc)的聚(2-甲氧基,5-(2-乙基-乙氧基)-对苯乙炔)(MEH-PPV)/富勒烯衍生物(PCBM)有机太阳电池.测试结果表明:掺杂15%CuPc的MEH-PPV/PCBM太阳电池效率(1.41%)比标准的MEH-PPV/PCBM太阳电池(1.26%)提高12%.器件的吸收谱和迁移率测试表明CuPc导致的吸收谱增强和迁移率提高是器件效率提高的主要原因.

We fabricate efficient bulk heterojunction organic photovoltaic （OPV） device based on poly（2-methoxy-5-（2＇-ethylhexyloxy）-1,4-phenylenevinylene） （MEH-PPV）,with copper（Ⅱ） phthalocyanine （CuPc） used as a donor and [6,6]-phenyl C61-butyric acid methyl ester （PCBM） serving as an acceptor.The power conversion efficiency of the MEH-PPV/PCBM OPV device with 15% CuPc （1.41%） increases by 12% compared with that of the standard MEH-PPV/PCBM device （1.26%）.The efficiency improvement can be attributed to the CuPc supplemental absorption and higher mobility than MEH-PPV,leading to increased short-circuit current density.