Issue 25, 2012
From the journal:

Journal of Materials Chemistry

How the linkage positions affect the performance of bulk-heterojunction polymer solar cells

Shuang Li,a   Zhicai He,b   Jian Yu,a   Su'an Chen,a   Aoshu Zhong,a   Runli Tang,a   Hongbin Wu,*b   Jingui Qina  and  Zhen Li*a  

* Corresponding authors

a Department of Chemistry, Hubei Key Lab on Organic and Polymeric Opto-Electronic Materials, Wuhan University, Wuhan 430072, China
E-mail: lizhen@whu.edu.cn, lichemlab@163.com

b College of Materials Science, South China University of Technology, Guangzhou 510640, China
E-mail: hbwu@scut.edu.cn

Abstract

Two new alternating copolymers. PCT-10,13-BPz (P1) and PCT-2,7-BPz (P2), which were constructed from the same monomers and only different in the connecting points, were synthesized via Suzuki coupling reaction. The UV-vis absorptions, thermal stability, energy levels, field-effect carrier mobility and photovoltaic characteristics of the two copolymers were systematically evaluated to understand the relationships between the polymer structure at the molecular level and the photovoltaic performances. Photovoltaic cells based on the two copolymers with a structure of ITO/PEDOT : PSS/Polymer : PC71BM/PFN/Al exhibited PCEs of 4.31% and 0.64%, respectively, under one sun of AM 1.5 solar simulator illumination (100 mW cm−2).

Graphical abstract: How the linkage positions affect the performance of bulk-heterojunction polymer solar cells

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Article information

DOI
https://doi.org/10.1039/C2JM32002A
Article type
Paper
Submitted
30 Mar 2012
Accepted
24 Apr 2012
First published
26 Apr 2012

J. Mater. Chem., 2012,22, 12523-12531

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How the linkage positions affect the performance of bulk-heterojunction polymer solar cells

S. Li, Z. He, J. Yu, S. Chen, A. Zhong, R. Tang, H. Wu, J. Qin and Z. Li, J. Mater. Chem., 2012, 22, 12523 DOI: 10.1039/C2JM32002A

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