Open AccessEnhanced performance in polymer photovoltaic cells with chloroform treated indium tin oxide anode modification
Author(s) -
ZaiQuan Xu,
Jianxiang Li,
Jiacheng Yang,
Pan-Pan Cheng,
Jie Zhao,
S. T. Lee,
Y. Q. Li,
Jianxin Tang
Publication year - 2011
Publication title -
applied physics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.182
H-Index - 442
eISSN - 1077-3118
pISSN - 0003-6951
DOI - 10.1063/1.3601853
Subject(s) - anode , materials science , indium tin oxide , photocurrent , energy conversion efficiency , work function , chemical engineering , polymer , polymer solar cell , substrate (aquarium) , surface modification , inorganic chemistry , optoelectronics , chemistry , nanotechnology , thin film , electrode , composite material , oceanography , layer (electronics) , geology , engineering
Enhanced performance of a poly(3-hexylthiophene):(6,6)-phenyl C61 butyric acid methyl ester bulk heterojunction polymer photovoltaic cell is reported by modifying the indium tin oxide (ITO) anode with chloroform solution. Instead of the traditional UV-ozone treatment, the optimized chloroform modification on ITO anode can result in an enhancement in the power conversion efficiency of an identical device, originating from an increase in the photocurrent with negligible change in the open-circuit voltage. The performance enhancement is attributed to the work function modification of the ITO substrate through the surface incorporation of the chlorine, and thus improved charge collection efficiency. © 2011 American Institute of Physics.
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