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Effect of fluorine substitution on photovoltaic performance of DPP-based copolymer

DC Field Value Language
dc.contributor.authorLee, Jin Yongen
dc.contributor.authorJo, Jea Woong-
dc.contributor.authorJo, Won Ho-
dc.date.accessioned2015-12-11T08:48:14Z-
dc.date.available2015-12-11T08:48:14Z-
dc.date.issued2015-
dc.identifier.citationOrganic Electronics, vol.20, pp. 125-131-
dc.identifier.urihttps://hdl.handle.net/10371/94778-
dc.description.abstractLow bandgap conjugated copolymers composed of thiophene-capped diketopyrrolopyrrole
and benzene with/without fluorination were synthesized to investigate the effect of fluorine
substitution on their photovoltaic properties. With increasing the number of substituted
fluorine atom on benzene, both HOMO and LUMO energy levels of the copolymer are
lowered and its crystallinity is increased. The fibril size of copolymer:PC71BM blend
becomes smaller as the number of substituted fluorine increases. As a result, the copolymer
with two fluorine substitution exhibits deeper HOMO energy level (5.30 eV), leading to
higher VOC (0.72 V), and also enhanced crystallinity (polymer chain packing), leading to
higher JSC (12.4 mA cm2
) as compared to mono- and non-fluorinated ones. The copolymer
with two fluorine atoms shows a promising power conversion efficiency of 5.63%.
-
dc.language.isoen-
dc.publisherElsevier-
dc.subjectPolymer solar cell-
dc.subjectDiketopyrrolopyrrole-
dc.subjectConjugated polymer-
dc.subjectFluorination-
dc.titleEffect of fluorine substitution on photovoltaic performance of DPP-based copolymeren
dc.typeArticle-
dc.contributor.AlternativeAuthor이진용-
dc.contributor.AlternativeAuthor조제웅-
dc.contributor.AlternativeAuthor조원호-
dc.identifier.doi10.1016/j.orgel.2015.02.008-
dc.description.srndOAIID:oai:osos.snu.ac.kr:snu2015-01/102/0000001236/1-
dc.description.srndADJUST_YN:N-
dc.description.srndEMP_ID:A004558-
dc.description.srndDEPT_CD:445-
dc.description.srndCITE_RATE:3.827-
dc.description.srndFILENAME:2. effect of fluorine substitution.pdf-
dc.description.srndDEPT_NM:재료공학부-
dc.description.srndSCOPUS_YN:Y-
dc.description.srndCONFIRM:Y-
dc.identifier.rimsid50589-
dc.identifier.srnd2015-01/102/0000001236/1-
dc.type.rimsART-
Appears in Collections:
College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Materials Science and Engineering (재료공학부)Journal Papers (저널논문_재료공학부)
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