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Kim, BongSoo
Polymer & Organic Semiconductor Lab.
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dc.citation.endPage 1914 -
dc.citation.number 16 -
dc.citation.startPage 1904 -
dc.citation.volume 53 - Kim, Ji-Hoon - Song, Chang Eun - Shin, Won Suk - Kim, BongSoo - Kang, In-Nam - Hwang, Do-Hoon - 2023-12-22T00:47:47Z - 2023-12-22T00:47:47Z - 2018-09-10 - 2015-08 -
dc.description.abstract The synthesis of donor-acceptor type semiconducting copolymers is described. Quinoxaline (QX) or difluorinated quinoxaline (DFQX) derivatives serve as electron acceptors, while thiophene (T) or selenophene (Se) serve as electron donors. Alternating polymers are synthesized through Stille cross-coupling, and their thermal stability, optical and electrochemical properties, field-effect carrier mobilities, film crystallinities, and photovoltaic performances are investigated. The intramolecular charge transfer between the electron-donating and electron-accepting units in the backbone induces absorption from 450 to 750 nm. The optical band-gap energies of the polymers are between 1.65 and 1.73 eV, and depend on the polymer structure. Organic photovoltaic cells fabricated using a polymer composed of DFQX and selenophene (PSe-DFQX) exhibit a power conversion efficiency of 5.14% with an open-circuit voltage of 0.78 V, a short-circuit current density of 11.71 mA/cm(2), and fill factor of 0.57 under AM 1.5 G irradiation (100 mW cm(-2)). -
dc.identifier.bibliographicCitation JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, v.53, no.16, pp.1904 - 1914 -
dc.identifier.doi 10.1002/pola.27642 -
dc.identifier.issn 0887-624X -
dc.identifier.scopusid 2-s2.0-85027945626 -
dc.identifier.uri -
dc.identifier.url -
dc.identifier.wosid 000357272700008 -
dc.language 영어 -
dc.publisher WILEY-BLACKWELL -
dc.title Modulation of optical and electronic properties of quinoxailine-based conjugated polymers for organic photovoltaic cells -
dc.type Article -
dc.description.journalRegisteredClass scie -
dc.description.journalRegisteredClass scopus -
dc.subject.keywordAuthor conjugated polymer -
dc.subject.keywordAuthor copolymerization -
dc.subject.keywordAuthor crystallization -
dc.subject.keywordAuthor low band-gap polymer -
dc.subject.keywordAuthor quinoxaline derivative -
dc.subject.keywordAuthor organic thin film transistors -
dc.subject.keywordAuthor organic photovoltaic device -
dc.subject.keywordPlus HETEROJUNCTION SOLAR-CELLS -
dc.subject.keywordPlus THIN-FILM TRANSISTORS -
dc.subject.keywordPlus BAND-GAP POLYMERS -
dc.subject.keywordPlus HIGHLY CRYSTALLINE -
dc.subject.keywordPlus HOLE MOBILITY -
dc.subject.keywordPlus SELENOPHENE -
dc.subject.keywordPlus PERFORMANCE -
dc.subject.keywordPlus EFFICIENCY -
dc.subject.keywordPlus COPOLYMER -
dc.subject.keywordPlus DIKETOPYRROLOPYRROLE -


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