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Journal of Photonics for Energy

Simply modified indium tin oxides by ultrathin aluminum and sodium chloride composite interlayer for high performance inverted polymer solar cells
Author(s): Shuang Zheng; Zhenxuan Wu; Chuan Zhang; Huan Liu; Minnan Yan; Xiaodan Su; Jin Wang; Hongmei Zhang; Dongge Ma
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Paper Abstract

We report the fabrication of high performance inverted polymer solar cells with simply modified indium tin oxide (ITO) by an ultrathin aluminum (Al) and sodium chloride (NaCl) composite layer. The device efficiency and stability were both improved. The optimized device with poly(3-hexylthiophene) as the donor and [6,6]-phenyl-C61-butyric acid methylester as the acceptor under AM 1.5 (100  mw cm−2) radiation achieved a high power conversion efficiency of 3.88% with an open-circuit voltage of 0.60 V and a fill factor of 0.61, which is significantly higher than those of the inverted devices with only Al or NaCl as modification interlayer, respectively. Moreover, the stability is enhanced by about 70% more than that of the conventional device. The significant enhancement is attributed to the reduced work function of ITO electrode from 4.75 to 3.90 eV by modification as well as the improvement of the electrode interface.

Paper Details

Date Published: 28 August 2017
PDF: 10 pages
J. Photon. Energy 7(3) 035502 doi: 10.1117/1.JPE.7.035502
Published in: Journal of Photonics for Energy Volume 7, Issue 3
Show Author Affiliations
Shuang Zheng, Nanjing Univ. of Posts and Telecommunications (China)
Zhenxuan Wu, Nanjing Univ. of Posts and Telecommunications (China)
Chuan Zhang, Nanjing Univ. of Posts and Telecommunications (China)
Huan Liu, Nanjing Univ. of Posts and Telecommunications (China)
Minnan Yan, Nanjing Univ. of Posts and Telecommunications (China)
Xiaodan Su, Nanjing Univ. of Posts and Telecommunications (China)
Jin Wang, Nanjing Univ. of Posts and Telecommunications (China)
Hongmei Zhang, Nanjing Univ. of Posts and Telecommunications (China)
Dongge Ma, Changchun Institute of Applied Chemistry (China)


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