Fine-tuning of Polymer Photovoltaic Properties by the Length of Alkyl Side Chains

Rui-ping Qin; Yu-rong Jiang; Hao-xing Zhang; Kai-xuan Zhang; Qun-ying Zhang; Fang-gao Chang

doi:10.1007/s10118-015-1603-5

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Fine-tuning of Polymer Photovoltaic Properties by the Length of Alkyl Side Chains

PAPER | Updated：2021-06-21

- Fine-tuning of Polymer Photovoltaic Properties by the Length of Alkyl Side Chains
- Fine-tuning of Polymer Photovoltaic Properties by the Length of Alkyl Side Chains
- Chinese Journal of Polymer Science 2015年33卷第3期页码：490-498
- Affiliations：
  
  College of Physics & Electronic Engineering, Key Laboratory of Photovoltaic Materials of Henan Province, Henan Normal University, Xinxiang 453007, China
- Author bio：
  
  **Rui-ping Qin (秦瑞平), E-mail: qinruiping@163.com
  Fang-gao Chang (常方高), E-mail: fanggaochang@hotmail.com
- Funds：
  
  Postdoctoral Starting Foundation of Henan Normal University(01026500105);Young Scientists Foundation of Henan Normal University(01026400061);Henan Province basic and frontier technology research projects(1323004100247)
- DOI：10.1007/s10118-015-1603-5
  中图分类号：
- 收稿：2014-06-27，
  
  修回：2014-08-13，
  
  录用：2014-08-14，
  
  纸质出版：2015-03
- Accepted：
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Rui-ping Qin, Yu-rong Jiang, Hao-xing Zhang, 等. Fine-tuning of Polymer Photovoltaic Properties by the Length of Alkyl Side Chains[J]. Chinese Journal of Polymer Science, 2015,33(3):490-498.

Rui-ping Qin, Yu-rong Jiang, Hao-xing Zhang, et al. Fine-tuning of Polymer Photovoltaic Properties by the Length of Alkyl Side Chains[J]. Chinese Journal of Polymer Science, 2015, 33(3): 490-498.
Rui-ping Qin, Yu-rong Jiang, Hao-xing Zhang, 等. Fine-tuning of Polymer Photovoltaic Properties by the Length of Alkyl Side Chains[J]. Chinese Journal of Polymer Science, 2015,33(3):490-498. DOI： 10.1007/s10118-015-1603-5.

Rui-ping Qin, Yu-rong Jiang, Hao-xing Zhang, et al. Fine-tuning of Polymer Photovoltaic Properties by the Length of Alkyl Side Chains[J]. Chinese Journal of Polymer Science, 2015, 33(3): 490-498. DOI： 10.1007/s10118-015-1603-5.

摘要

Abstract

This paper reports the synthesis and characteristics of a series of alkyl-substituted planar polymers. The physical properties are carefully tuned to optimize their photovoltaic performance. Depending on the length of soluble alkyl side chains which modify the structural order and orientation substantially in polymer backbones

the device performance can be improved significantly. The tuning of HOMO energy levels optimized polymers’ spectral coverage of absorption and their hole mobility

as well as miscibility with fullerene; all these efforts enhanced polymer solar cell performances. The short-circuit current

for polymer solar cells was increased by adjusting polymer chain packing ability. It was found that films with well distributed polymer/fullerene interpenetrating network exhibit improved solar cell conversion efficiency. Enhanced efficiency up to 5.8% has been demonstrated. The results provide important insights about the roles of flexile chains in structure-property relationship for the design of new polymers to be used in high efficient solar cells.

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