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The effect of different chalcogenophenes in isoindigo-based conjugated copolymers on photovoltaic properties

Cited 35 time in Web of Science Cited 34 time in Scopus
Authors
Jung,Eui Hyuk; Bae, Seunghwan; Yoo, Tae Woong; Jo, Won Ho
Issue Date
2014-07
Publisher
Royal Society of Chemistry
Citation
Polymer Chemistry, Vol.2014 No.5, pp. 6545-6550
Keywords
공학
Abstract
New low bandgap conjugated copolymers based on isoindigo and three different chalcogenophenes (thiophene, selenophene and tellurophene) were synthesized (denoted as PIT, PISe and PITe, respectively) to investigate the effect of different chalcogenophenes on their photovoltaic properties. PISe and PITe show lower bandgaps and deeper HOMO energy levels as compared to PIT. The solar cell device based on PISe blended with PC61BM exhibits a promising PCE of 5.72% with a JSC of 10.21 mA cm?2, while PITe shows the lowest PCE of 1.16% with the lowest JSC of 2.51 mA cm?2 because of its coarse morphology although the field-effect hole mobility of PITe is the highest due to higher crystallinity than others.
ISSN
1759-9954
Language
English
URI
http://hdl.handle.net/10371/93394
DOI
https://doi.org/10.1039/c4py00791c
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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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