Influence of Cesium Chloride Methanol Solution on The Conventional Organic Polymer Solar Cells

WEN Ying-xiu; LIU Tong-fang; ZHU Li-jie; WANG Yue; DENG Zhen-bo

doi:10.3788/fgxb20163709.1097

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Influence of Cesium Chloride Methanol Solution on The Conventional Organic Polymer Solar Cells

更新时间：2020-08-12

- Influence of Cesium Chloride Methanol Solution on The Conventional Organic Polymer Solar Cells
- Chinese Journal of Luminescence Vol. 37, Issue 9, Pages: 1097-1102(2016)
- 作者机构：
  
  北京交通大学光电子技术研究所发光与光信息技术教育部重点实验室, 北京 100044
- 作者简介：
- 基金信息：
- DOI：10.3788/fgxb20163709.1097
  CLC： O484.3
- Received：01 April 2016，
  
  Revised：24 April 2016，
  
  Published：05 September 2016
- 稿件说明：
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文颖秀, 刘统方, 朱丽杰等. 氯化铯甲醇溶液对有机聚合物太阳能电池的影响[J]. 发光学报, 2016,37(9): 1097-1102

WEN Ying-xiu, LIU Tong-fang, ZHU Li-jie etc. Influence of Cesium Chloride Methanol Solution on The Conventional Organic Polymer Solar Cells[J]. Chinese Journal of Luminescence, 2016,37(9): 1097-1102
文颖秀, 刘统方, 朱丽杰等. 氯化铯甲醇溶液对有机聚合物太阳能电池的影响[J]. 发光学报, 2016,37(9): 1097-1102 DOI： 10.3788/fgxb20163709.1097.

WEN Ying-xiu, LIU Tong-fang, ZHU Li-jie etc. Influence of Cesium Chloride Methanol Solution on The Conventional Organic Polymer Solar Cells[J]. Chinese Journal of Luminescence, 2016,37(9): 1097-1102 DOI： 10.3788/fgxb20163709.1097.

摘要

研究了氯化铯的甲醇溶液作为阴极修饰层，来提高传统有机聚合物太阳能电池器件性能。通过电容-电压（

）测试分析了铝电极和PTB7/PC

BM之间的界面电荷积累情况，同时测试了紫外光电子能谱（UPS），对铝的功函数改变作了研究。结果表明，采用氯化铯的甲醇溶液作阴极修饰层的器件，其短路电流（

）、开路电压（

）、填充因子（FF）都有所提高，光电转化效率达到6.36%，与仅用甲醇处理过的器件相比，光电转化效率提高了11%；与未经甲醇处理的器件相比，光电转化效率提高了42.6%。这种一步溶液处理法能够减少电荷积累，同时降低铝电极的功函数，利于电子收集，进而提高器件性能。

Abstract

The cesium chloride (CsCl) methanol solution was introduced into the conventional organic polymer solar cells as cathode buffer layer to improve its properties. The charge accumulation between the Al cathode and PTB7/PC

BM was analyzed through capacitance-voltage (

) measurement and the change of work function of Al was investigated by ultraviolet photoelectron spectroscopy (UPS). The results show that the short-circuit current (

)

the open-circuit voltage (

)

the fill factor and the power conversion efficiency (PCE) of the device with the CsCl methanol solution treatment have been improved. And the PCE reaches 6.36%

which has been improved 11% compared with the methanol treatment devices and 42.6% compared with the devices without any treatment. This one-step solution treatment can improve the device properties by reducing the charge accumulation and decreasing the work function of Al cathode which is benefit to electron collection.

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references

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Related Institution

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