Conversion efficiency improvement mechanisms of polymer solar cells by balance electron-hole mobility using blended P3HT:PCBM:pentacene active layer

被引：28

作者：

Lee, Ching-Ting ^{[1
]}

Lee, Cheng-Hsin ^{[1
]}

机构：

[1] Natl Cheng Kung Univ, Inst Microelect, Dept Elect Engn, Res Ctr Energy Technol & Strategy, Tainan 701, Taiwan

来源：

ORGANIC ELECTRONICS | 2013年 / 14卷 / 08期

关键词：

Blended active layer; Carrier mobility balance; Polymer solar cells; Power conversion efficiency; Space-charge-limited current model; CHARGE-TRANSPORT; POLY(3-HEXYLTHIOPHENE); 3-HEXYLTHIOPHENE;

D O I：

10.1016/j.orgel.2013.04.038

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

To improve the power conversion efficiency of polymer solar cells, the blended P3HT:PCBM:pentacene active layer was used to balance hole-electron mobility and roughen surface. Using space-charged-limited current model to analyze the hole-only devices and the electron-only devices, the P3HT: PCBM: pentacene (weight ratio = 1:0.8:0.09) active layer exhibited balance hole-electron mobility. Compared with the power conversion efficiency of 3.46% of the conventional polymer solar cells using P3HT: PCBM (1: 0.8) active layer, the power conversion efficiency of 4.42% was obtained. In other words, the power conversion efficiency was improved about 27.5%. (C) 2013 Elsevier B.V. All rights reserved.

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页码：2046 / 2050

页数：5

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