Enhancing the power conversion efficiency of PCDTBT:PC71BM polymer solar cells using a mixture of solvents
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- 作者：Shaopeng Yang (1)
Ye Zhang (1)
Tao Jiang (1)
Xuefeng Sun (1)
Chaoqun Lu (1)
Guang Li (1)
Xiaowei Li (1)
Guangsheng Fu (1) - 关键词：Power conversion efficiency ; Mixed solvent ; Chloroform ; Chlorobenzene ; External quantum efficiency
- 刊名：Chinese Science Bulletin
- 出版年：2014
- 出版时间：January 2014
- 年：2014
- 卷：59
- 期：3
- 页码：297-300
- 全文大小：348 KB
- 作者单位：Shaopeng Yang (1)
Ye Zhang (1)
Tao Jiang (1)
Xuefeng Sun (1)
Chaoqun Lu (1)
Guang Li (1)
Xiaowei Li (1)
Guangsheng Fu (1)
1. Hebei Key Laboratory of Optic-electronic Information Materials, College of Physics Science and Technology, Hebei University, Baoding, 071002, China - ISSN：1861-9541
文摘
Organic polymer solar materials are shown to exhibit better solubility in mixed solvents than in pure ones, which affects the performance of their solar cells. In this article, poly[N-9-hepta-decanyl-2,7-carbazole-alt-5,5-(4,7-di-2-thienyl-2,1,3-benzothiadiazole) (PCDTBT) and [6,6]-phenyl-C71-butyric acid methyl ester (PC71BM) are used as active layer materials in solar cells. To optimize the performance of these active materials, the ratio of chloroform (CF) to chlorobenzene used as solvents to dissolve PCDTBT, and PC71BM is varied, which is shown to affect power conversion efficiency (PCE). The solar cell that shows the best performance with a PCE as high as 6.82?% is produced using a volume ratio of CF to chlorobenzene of 1:1.