溶剂对以PEIE为阴极修饰层的反型聚合物太阳能电池性能的影响

刘贤德; 吕龙峰; 侯延冰

doi:10.3788/fgxb20153606.0666

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溶剂对以PEIE为阴极修饰层的反型聚合物太阳能电池性能的影响

器件制备及器件物理 | 更新时间：2020-08-12

- 溶剂对以PEIE为阴极修饰层的反型聚合物太阳能电池性能的影响
- Effect of Solvent on The Performance of Inverted Polymer Solar Cells Using Polyethylenimine Ethoxylated (PEIE) as The Cathode Interfacial Layer
- 发光学报 2015年36卷第6期页码：666-672
- 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：
  
  国家自然科学基金(61275175,61177017,61377028)();国家自然科学杰出青年学者基金(61125505)资助项目()
- DOI：10.3788/fgxb20153606.0666
  中图分类号： TN366
- 纸质出版日期：2015-6-3，
  
  收稿日期：2015-3-6，
  
  修回日期：2015-4-20，
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刘贤德, 吕龙峰, 侯延冰. 溶剂对以PEIE为阴极修饰层的反型聚合物太阳能电池性能的影响[J]. 发光学报, 2015,36(6): 666-672

LIU Xian-de, LYU Long-feng, HOU Yan-bing. Effect of Solvent on The Performance of Inverted Polymer Solar Cells Using Polyethylenimine Ethoxylated (PEIE) as The Cathode Interfacial Layer[J]. Chinese Journal of Luminescence, 2015,36(6): 666-672
刘贤德, 吕龙峰, 侯延冰. 溶剂对以PEIE为阴极修饰层的反型聚合物太阳能电池性能的影响[J]. 发光学报, 2015,36(6): 666-672 DOI： 10.3788/fgxb20153606.0666.

LIU Xian-de, LYU Long-feng, HOU Yan-bing. Effect of Solvent on The Performance of Inverted Polymer Solar Cells Using Polyethylenimine Ethoxylated (PEIE) as The Cathode Interfacial Layer[J]. Chinese Journal of Luminescence, 2015,36(6): 666-672 DOI： 10.3788/fgxb20153606.0666.

摘要

研究了乙氧基化聚乙烯亚胺(PEIE)作为反型太阳能电池阴极修饰层

其溶剂的选择对器件性能的影响。我们选择蒸馏水(DW)、异丙醇(IPA)、乙二醇甲醚(MEA)和乙氧基乙醇(EEA)作为PEIE的稀释溶剂来制备器件

并通过瞬态光电流的测量和低频电容-电压(

C-V

)曲线的测量分析了器件在ITO和PEIE修饰层之间的电荷积累程度和电极电荷收集效率

同时对不同溶液制成的PEIE层做了表面形貌分析。结果表明

MEA器件的光电转换效率(PCE)达到3.61%

相对于DW器件(2.66%)提高了24%

对于PEIE层选择不同的溶剂将导致表面形貌的差异

并影响器件界面的缺陷密度

进而影响器件性能。

Abstract

The effect of different solvents on the performance of polyethylenimine ethoxylated as a cathode interfacial layer in inverted polymer solar cells is investigated. Four solvents

distilled water (DW)

isopropanol (IPA)

2-methoxyethanol (MEA) and 2-ethoxyethanol (EEA) were chosen as the diluting solvents of PEIE to fabricate devices. Surface-charge accumulation and carrier collection at interface between ITO and PEIE layer fabricated from four different solutions are analyzed and compared by the measurements of transient photocurrent characteristic and photo-excitation capacitance-voltage (

C-V

) profiling. The results show that the photoelectric conversion efficiency (PCE) of the MEA device reaches 3.61%

compared with the DW device (2.66%) increased by 24%.The morphology of PEIE film depends on PEIE solvents

and the traps tracing to the morphology of PEIE layer lead to different charge accumulation and charge collection efficiency

which further affects the performances of devices.

关键词

聚合物太阳能电池溶剂表面形貌电荷积累乙氧基化聚乙烯亚胺

Keywords

polymer solar cellssolventmorphologycharge accumulationpolyethylenimine ethoxylated

references

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