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dc.contributor.author Sim, Hye Ryun -
dc.contributor.author Kang, Mingyun -
dc.contributor.author Yu, Seong Hoon -
dc.contributor.author Nam, Geon-Hee -
dc.contributor.author Lim, Bogyu -
dc.contributor.author Chung, Dae Sung -
dc.date.accessioned 2021-01-22T07:55:02Z -
dc.date.available 2021-01-22T07:55:02Z -
dc.date.created 2021-01-07 -
dc.date.created 2021-01-07 -
dc.date.issued 2021-02 -
dc.identifier.citation Advanced Optical Materials, v.9, no.4 -
dc.identifier.issn 2195-1071 -
dc.identifier.uri http://hdl.handle.net/20.500.11750/12824 -
dc.description.abstract Photomultiplication-type organic photodiodes (PM-OPDs) rely on acceptor molecules for both charge separation and efficient gain generation. Herein, a new non-fullerene acceptor is designed and synthesized by introducing thienylenevinylene (TV) groups into the conventional 2,2MODIFIER LETTER PRIME-[[6,6,12,12-tetrakis(4-hexylphenyl)-6,12-dihydrodithieno[2,3-d:2MODIFIER LETTER PRIME,3MODIFIER LETTER PRIME-dMODIFIER LETTER PRIME]-s-indaceno[1,2-b:5,6-bMODIFIER LETTER PRIME]dithiophene-2,8-diyl]bis[methylidyne(3-oxo-1H-indene-2,1(3H)-diylidene)]]bis[propanedinitrile] (ITIC) structure. The resulting TV-ITIC acceptor possesses not only extended pi-conjugation length, which leads to lower energy bandgap as well as deeper lowest unoccupied molecular orbital (LUMO) level, but also enhanced hydrophobic characteristics, owing to the increased volumetric portion of the aliphatic chain, which improves the miscibility with the donor polymer semiconductor, poly(3-hexylthiophene-2,5-diyl) (P3HT). Moreover, pristine TV-ITIC films consist of intrinsically well-ordered anisotropic crystallites, which are confirmed by 2D grazing incidence X-ray diffraction (2D-GIXD) analysis. All of these photophysical properties are beneficial for efficient exciton separation, electron trapping, and charge injection abilities of PM-OPDs compared to those obtained with conventional ITIC. Because of such synergetic contributions of TV-ITIC to the photomultiplication mechanism, the resulting optimized PM-OPD exhibits a high external quantum efficiency (>74,000%) and a large specific detectivity (>10(12) Jones). © 2020 Wiley-VCH GmbH -
dc.language English -
dc.publisher Wiley -
dc.title Design and Synthesis of a New Non-Fullerene Acceptor for High-Performance Photomultiplication-Type Organic Photodiodes -
dc.type Article -
dc.identifier.doi 10.1002/adom.202001836 -
dc.identifier.wosid 000598905600001 -
dc.identifier.scopusid 2-s2.0-85097612159 -
dc.type.local Article(Overseas) -
dc.type.rims ART -
dc.description.journalClass 1 -
dc.citation.publicationname Advanced Optical Materials -
dc.contributor.localauthor Sim, Hye Ryun -
dc.contributor.localauthor Kang, Mingyun -
dc.contributor.localauthor Yu, Seong Hoon -
dc.contributor.localauthor Nam, Geon-Hee -
dc.contributor.localauthor Lim, Bogyu -
dc.contributor.localauthor Chung, Dae Sung -
dc.contributor.nonIdAuthor Sim, Hye Ryun -
dc.contributor.nonIdAuthor Kang, Mingyun -
dc.contributor.nonIdAuthor Yu, Seong Hoon -
dc.contributor.nonIdAuthor Nam, Geon-Hee -
dc.contributor.nonIdAuthor Lim, Bogyu -
dc.identifier.citationVolume 9 -
dc.identifier.citationNumber 4 -
dc.identifier.citationTitle Advanced Optical Materials -
dc.type.journalArticle Article; Early Access -
dc.description.isOpenAccess N -
dc.subject.keywordAuthor high-performance photodiodes -
dc.subject.keywordAuthor non-fullerene acceptors -
dc.subject.keywordAuthor organic photodiodes -
dc.subject.keywordAuthor photomultiplication -
dc.subject.keywordAuthor polymer semiconductors -
dc.subject.keywordPlus POLYMER PHOTODETECTORS -


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