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Yang, Changduk
Advanced Tech-Optoelectronic Materials Synthesis Lab (ATOMS)
Research Interests
  • Optoelectronic materials synthesis/organic electronics, functionalization of carbonaceous solids, advanced materials chemistry, macromolecular chemistry

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Effects of incorporating different chalcogenophene comonomers into random acceptor terpolymers on the morphology and performance of all-polymer solar cells

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dc.contributor.authorAna, Yujinko
dc.contributor.authorOh, Jiyeonko
dc.contributor.authorChen, Sheanshanko
dc.contributor.authorLee, Byongkyuko
dc.contributor.authorLee, Sang Myeonko
dc.contributor.authorHan, Daeheeko
dc.contributor.authorYang, Changdukko
dc.date.available2018-01-11T11:29:41Z-
dc.date.created2018-01-08ko
dc.date.issued201802ko
dc.identifier.citationPOLYMER CHEMISTRY, v.9, no.5, pp.593 - 602ko
dc.identifier.issn1759-9954ko
dc.identifier.urihttp://scholarworks.unist.ac.kr/handle/201301/23178-
dc.identifier.urihttp://pubs.rsc.org/en/content/articlelanding/2018/py/c7py01907f#!divAbstractko
dc.description.abstractA new family of naphthalenediimide (NDI)-bithiophene-based random terpolymers (PNDI-Fu10, PNDI-Th10, and PNDI-Se10) was prepared by incorporating a small amount (10 mol%) of different chalcogenophene units, namely furan (Fu), thiophene (Th), and selenophene (Se), into a poly((N,N'-bis(2-octyldodecyl)-naphthalene-1,4,5,8-bis(dicarboximide)-2,6-diyl)-alt-5,5'-(2,2'-bithiophene)) (P(NDI2OD-T2)) backbone. The terpolymers all exhibited negligible optical property and frontier energy level differences. Interestingly, the blend film morphology and photovoltaic performance of all-polymer solar cells (all-PSCs), comprising a random terpolymer series as an acceptor and poly(6-fluoro-2,3-bis-(3-octyloxyphenyl)quinoxaline-5,8-dyl-alt-thiophene-2,5-diyl) (FTQ) as a donor, were strongly dependent on the type of chalcogenophene. Consequently, the all-PSCs revealed a clear variation in short-circuit current density (JSC) and fill factor (FF) while retaining identical open-circuit voltage (VOC). The greatest power-conversion efficiency of 5.88% with a high JSC of 10.77 mA cm−2 was observed for PNDI-Th10:FTQ because of a synergistic contribution from a more preferential π-face-on orientation and suppression of bimolecular/geminate recombination. This was confirmed by a detailed investigation on the morphology and charge dynamic structural properties. In addition to understanding their effects on photovoltaic characteristics, this study demonstrates that introducing a small amount of the chalcogenophenes into a well-performing polymer is a simple and effective tool to improve JSC values while maintaining VOCs of parent polymers.ko
dc.languageENGko
dc.publisherROYAL SOC CHEMISTRYko
dc.titleEffects of incorporating different chalcogenophene comonomers into random acceptor terpolymers on the morphology and performance of all-polymer solar cellsko
dc.typeARTICLEko
dc.identifier.pid1050null
dc.identifier.rimsid29598ko
dc.identifier.scopusid2-s2.0-85041283756ko
dc.identifier.wosid000423789400006ko
dc.type.rimsAko
dc.identifier.doihttp://dx.doi.org/10.1039/C7PY01907Fko
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