利用阴极修饰层提高有机光伏电池的性能及稳定性

印寿根; 杨利营; 许新蕊; 秦文静

doi:10.3788/fgxb20123303.0233

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利用阴极修饰层提高有机光伏电池的性能及稳定性

特邀报告 | 更新时间：2020-08-12

- 利用阴极修饰层提高有机光伏电池的性能及稳定性
- Enhancement of The Performance and Stability of Polymer Photovoltaic Cells by Cathode Buffer Layer
- 发光学报 2012年33卷第3期页码：233-237
- 作者机构：
  
  1. 天津理工大学显示材料与光电器件教育部重点实验室天津,300384
  2. 天津市光电显示材料与器件重点实验室天津,300384
- 作者简介：
- 基金信息：
  
  国家自然科学基金(60976048,60876046)();教育部科技研究重点项目(209007)();天津市科技支撑计划(10ZCKFGX01900)();天津市教委
- DOI：10.3788/fgxb20123303.0233
  中图分类号： O631.2+3
- 收稿日期：2011-12-20，
  
  修回日期：2012-01-12，
  
  网络出版日期：2012-03-10，
  
  纸质出版日期：2012-03-10
- 稿件说明：
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印寿根, 杨利营, 许新蕊, 秦文静. 利用阴极修饰层提高有机光伏电池的性能及稳定性[J]. 发光学报, 2012,33(3): 233-237

YIN Shou-gen, YANG Li-ying, XU Xin-rui, QIN Wen-jing. Enhancement of The Performance and Stability of Polymer Photovoltaic Cells by Cathode Buffer Layer[J]. Chinese Journal of Luminescence, 2012,33(3): 233-237
印寿根, 杨利营, 许新蕊, 秦文静. 利用阴极修饰层提高有机光伏电池的性能及稳定性[J]. 发光学报, 2012,33(3): 233-237 DOI： 10.3788/fgxb20123303.0233.

YIN Shou-gen, YANG Li-ying, XU Xin-rui, QIN Wen-jing. Enhancement of The Performance and Stability of Polymer Photovoltaic Cells by Cathode Buffer Layer[J]. Chinese Journal of Luminescence, 2012,33(3): 233-237 DOI： 10.3788/fgxb20123303.0233.

摘要

分别制备了以苯甲酸锂、碳酸铯和聚氧化乙烯为阴极修饰层的基于P3HT∶PCBM体系的本体异质结有机光伏电池。比较了3种阴极修饰层对器件性能及稳定性的影响。结果表明:选择合适的阴极修饰层材料是提高光电转换效率、延长电池使用寿命的可行性途径之一。纯无机阴极修饰层不能有效地阻挡氧气和水进入活性层

对于减缓器件的性能衰退效果不如有机阴极修饰层材料。有机聚合物材料可以减小漏电流的产生

开路电压和填充因子都得到很大提高

有利于提高器件的性能及稳定性。合成可溶液加工的具有极性基团的共轭聚合物材料是未来阴极修饰层的发展方向。

Abstract

Enhanced performance and stability of polymer solar cells based on regioregular poly(3-hexylthiophene) (P3HT) and methanofullerene [6

6]-phenyl-C

butyric acid methyl ester (PCBM) blend were obtained by using cesium carbonate (Cs

)

lithium benzoate (C

COOLi)

poly(ethylene-oxide) (PEO) as cathode buffer layer. The improved performance may attribute to the cathode buffer layer which reduces the interface resistance between the active layer and the cathode and enhances the interior electric field that may result in efficient charge transportation. In addition

the cathode buffer layer may serve as an effective oxygen and moisture diffusion barrier for the organic solar cells. The organic cathode buffer layer is superior to the inorganic materials. Solution processed conjugated polymer bearing strong polar groups in the side chains is a promising candidate as an interlayer to improve the efficiency of electron collection and to reduce the ambience influence on the stability of polymer solar cells.

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references

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