Efficiency enhancement for bulk heterojunction photovoltaic cells via incorporation of alcohol soluble conjugated polymer interlayer

被引：36

作者：

Chen, Yu ^{[1
,3
]}

Jiang, Zhitao ^{[2
,3
]}

Gao, Mei ^{[3
]}

Watkins, Scott E. ^{[3
]}

Lu, Ping ^{[2
]}

Wang, Haiqiao ^{[1
]}

Chen, Xiwen ^{[3
]}

机构：

[1] Beijing Univ Chem Technol, State Key Lab Organ Inorgan Composites, Key Lab Carbon Fiber & Funct Polymers, Minist Educ, Beijing 100029, Peoples R China

[2] Zhejiang Univ, Dept Chem, Hangzhou 310027, Zhejiang, Peoples R China

[3] CSIRO Mat Sci & Engn, Clayton, Vic 3168, Australia

来源：

APPLIED PHYSICS LETTERS | 2012年 / 100卷 / 20期

关键词：

OPEN-CIRCUIT VOLTAGE; SOLAR-CELLS; COPOLYMER;

D O I：

10.1063/1.4719522

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Three dimensional conjugated polymers with pendant ionic ammoniums or polar amines and their linear analogues as cathode interfacial layers were used for organic photovoltaic cells based on blends of poly [(9,9-di-n-octyl-2,7-fluorene)-alt-(5,5-(4',7'-di-2-thienyl)-2',1',3'-benzothiadiazole)] (PFOTBT) or poly(3-hexylthiophene) as the donor and [6,6]-phenyl-C-61-butyric acid methyl ester (PC61BM) as the acceptor. The alcohol soluble conjugated polymer interlayers can improve the device performance significantly by simultaneous enhancements of the open-circuit voltage, short-circuit current density, and fill factor. An increase of the power conversion efficiency from 2.62% to 4.67% by 78% was observed with poly[(2,7,2',7'-spirobifluorene-co-(9,9-bis (6'-((N,N,N-trimethyl)ammonium)hexyl)-2,7-fluorene) dibromide)] based on PFOTBT-PC61BM blend. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4719522]

引用

页数：5

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