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dc.contributor.authorGeng, Renyong
dc.contributor.authorSong, Xin
dc.contributor.authorFeng, Haohao
dc.contributor.authorYu, Jiangsheng
dc.contributor.authorZhang, Ming
dc.contributor.authorGasparini, Nicola
dc.contributor.authorZhang, Zhuohan
dc.contributor.authorLiu, Feng
dc.contributor.authorBaran, Derya
dc.contributor.authorTang, Weihua
dc.date.accessioned2019-02-28T06:15:35Z
dc.date.available2019-02-28T06:15:35Z
dc.date.issued2019-02-22
dc.identifier.citationGeng R, Song X, Feng H, Yu J, Zhang M, et al. (2019) Nonfullerene Acceptor for Organic Solar Cells with Chlorination on Dithieno[3,2-b:2′,3′-d]pyrrol Fused-Ring. ACS Energy Letters: 763–770. Available: http://dx.doi.org/10.1021/acsenergylett.9b00147.
dc.identifier.issn2380-8195
dc.identifier.issn2380-8195
dc.identifier.doi10.1021/acsenergylett.9b00147
dc.identifier.urihttp://hdl.handle.net/10754/631272
dc.description.abstractA narrow-band-gap molecular acceptor, IPIC-4Cl, featuring an indacenobis(dithieno[3,2-b:2′,3′-d]pyrrol) (INP) core with 2-butyl-1-octyl side chains and chlorinated (dicyanomethylidene)-indan-1-one (IC) as electron-accepting end group, has been rationally designed as nonfullerene acceptors (NFAs) for organic solar cells (OSCs). The impact of chlorination on the acceptor unit is revealed by a comparison study with two counterpart NFAs bearing a fluorinated or nonhalogenated IC unit. The synergetic photophysical and morphological analyses reveal that PBDB-T:IPIC-4Cl blend possesses efficient exciton dissociation and charge collection integrated with higher crystallinity and optimized phase separation. Consequently, the OSCs constructed by PBDB-T:IPIC-4Cl obtain a champion power conversion efficiency (PCE) of 13.4% with an extremely low energy loss of 0.51 eV. More encouragingly, we achieve a higher photovoltaic performance of 14.3% for ternary solar cells by combining an optimal amount of PC71BM with PBDB-T:IPIC-4Cl blend.
dc.description.sponsorshipThis work is financially supported by the National Natural Science Foundation of China (Grant 51573077, 21875111), Jiangsu Province Natural Science Foundation (BK20180496, BK20130032), the 333 Project to Cultivate High Level Talents in Jiangsu Province, Six Talent Peaks Project in Jiangsu Province, and the Priority Academic Program Development of Jiangsu Higher Education Institutions.
dc.publisherAmerican Chemical Society (ACS)
dc.relation.urlhttps://pubs.acs.org/doi/10.1021/acsenergylett.9b00147
dc.rightsThis document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Energy Letters, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://pubs.acs.org/doi/10.1021/acsenergylett.9b00147.
dc.titleNon-Fullerene Acceptor for Organic Solar Cells with Chlorination on Dithieno[3,2-b:2′,3′-d]pyrrol Fused-Ring
dc.typeArticle
dc.contributor.departmentKAUST Solar Center (KSC)
dc.contributor.departmentMaterial Science and Engineering Program
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.identifier.journalACS Energy Letters
dc.eprint.versionPost-print
dc.contributor.institutionSchool of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
dc.contributor.institutionMIIT Key Laboratory of Advanced Solid Laser, Nanjing University of Science and Technology, Nanjing 210094, China
dc.contributor.institutionDepartment of Physics and Astronomy, Collaborative Innovation Center of IFSA, Shanghai Jiao Tong University, Shanghai 200240, China
kaust.personSong, Xin
kaust.personGasparini, Nicola
kaust.personBaran, Derya
dc.date.published-online2019-02-22
dc.date.published-print2019-03-08


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