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Semi-crystalline random conjugated copolymers with panchromatic absorption for highly efficient polymer solar cells

Cited 156 time in Web of Science Cited 158 time in Scopus
Authors
Jung,Jae Woong; Liu, Feng; Russell, Thomas P.; Jo, Won Ho
Issue Date
2013
Publisher
Royal Society of Chemistry
Citation
Energy & Environmental Science Vol.6 No.11, pp. 3101-3307
Keywords
공학
Abstract
An effective approach to extend the light absorption range of conjugated polymers for high performance photovoltaics is synthesis of copolymers composed of at least two different chromophores with a complementary absorption range. For this purpose, we synthesized random conjugated copolymers consisting of DPP and isoindigo as co-electron accepting units in donor?acceptor type conjugated copolymers. The random copolymers exhibited both broad light absorption and low-lying HOMO level, which contribute to enhancement of JSC and VOC, respectively. Furthermore, the predominant face-on orientation of the random copolymers on the substrate is beneficial for charge transport in the device. The polymer solar cell (PSC) based on the random copolymer has shown a promising efficiency of 6.04% which is the highest value among PSCs based on random copolymers.
ISSN
1754-5692
Language
English
URI
https://hdl.handle.net/10371/84050
DOI
https://doi.org/10.1039/c3ee40689j
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College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Material Science and Engineering (재료공학부) Journal Papers (저널논문_재료공학부)
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