Volume 26, Issue 24 p. 4043-4049
Communication

Enhanced Photovoltaic Performance by Modulating Surface Composition in Bulk Heterojunction Polymer Solar Cells Based on PBDTTT-C-T/PC71BM

Xia Guo,

State Key Laboratory of Polymer, Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190 P. R. China

University of Chinese Academy of Sciences, Beijing, 100049 P. R. China

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Maojie Zhang,

Corresponding Author

State Key Laboratory of Polymer, Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190 P. R. China

E-mail: zmj2008@iccas.ac.cn, hjhzlz@iccas.ac.cn, wma5@ncsu.edu, msfhuang@scut.edu.cnSearch for more papers by this author
Wei Ma,

Corresponding Author

Department of Physics, North Carolina State University, Raleigh, North Carolina, 27695 USA

E-mail: zmj2008@iccas.ac.cn, hjhzlz@iccas.ac.cn, wma5@ncsu.edu, msfhuang@scut.edu.cnSearch for more papers by this author
Long Ye,

State Key Laboratory of Polymer, Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190 P. R. China

University of Chinese Academy of Sciences, Beijing, 100049 P. R. China

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Shaoqing Zhang,

State Key Laboratory of Polymer, Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190 P. R. China

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Shengjian Liu,

Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, 510640 P. R. China

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Harald Ade,

Department of Physics, North Carolina State University, Raleigh, North Carolina, 27695 USA

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Fei Huang,

Corresponding Author

Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, 510640 P. R. China

E-mail: zmj2008@iccas.ac.cn, hjhzlz@iccas.ac.cn, wma5@ncsu.edu, msfhuang@scut.edu.cnSearch for more papers by this author
Jianhui Hou,

Corresponding Author

State Key Laboratory of Polymer, Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190 P. R. China

E-mail: zmj2008@iccas.ac.cn, hjhzlz@iccas.ac.cn, wma5@ncsu.edu, msfhuang@scut.edu.cnSearch for more papers by this author
First published: 08 April 2014
Citations: 192

Abstract

For the blend film of PBDTTT-C-T:PC71BM, the use of 1,8-diiodooctane as the solvent additive enriches the polymer at the top surface, so that a power conversion efficiency of 9.13% is recorded in the inverted polymer solar cell based on the blend, which is much higher than that of the device with conventional structure.

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