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김진영

Kim, Jin Young
Next Generation Energy Lab.
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dc.citation.endPage 3758 -
dc.citation.number 17 -
dc.citation.startPage 3751 -
dc.citation.title JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY -
dc.citation.volume 49 -
dc.contributor.author Song, Suhee -
dc.contributor.author Kim, Gi-Hwan -
dc.contributor.author Kang, Ilsoo -
dc.contributor.author Jin, Youngeup -
dc.contributor.author Kim, Il -
dc.contributor.author Kim, Jin Young -
dc.contributor.author Suh, Hongsuk -
dc.date.accessioned 2023-12-22T06:06:16Z -
dc.date.available 2023-12-22T06:06:16Z -
dc.date.created 2013-06-04 -
dc.date.issued 2011-09 -
dc.description.abstract A new accepter unit, dimethyl-2H-benzimidazole, was prepared and used for the synthesis of the conjugated polymers containing electron donor-acceptor pair for organic photovoltaics (OPVs). Dimethyl-2H-benzimidazole unit was designed to substitute the BT unit of poly(N-9'-heptadecanyl-2,7-carbazole-alt-5,5-(4',7'-di-2-thienyl-2',1',3'-benzothiadiazole)) (PCDTBT). A series of new semiconducting polymers with 2,2-dimethyl-2H-benzimidazole, 9-heptadecanyl-9H-carbazole, and thiophene (or bithiophene) units was synthesized using Stille polymerization to generate PCDTMBIs (or PCBBTMBIs). In dimethyl-2H-benzimidazole, the sulfur at 2-position of BT unit was replaced with dialkyl substituted carbon, while keeping the 1,2-quinoid form, to improve the solubility of the polymers. The absorption spectra of PCDTMBIs with thiophene units exhibit two maximum peaks at about 430 and 613-645 nm in solution. The solutions of PCBBTMBIs show two absorption peaks at about 445-456 and 630-645 nm which is red-shifted about 20 nm when compared with PCDTMBIs caused by the introduction of bithiophene units. In most efficient polymer PCBBTMBI3, the device annealed at 100 degrees C for 10 min demonstrated a V-OC value of 0.60 V, a J(SC) value of 4.31 mA/cm(2), and a FF of 0.35, leading to the power conversion efficiency (PCE) of 0.91%, under white light illumination (AM 1.5 G and 100 mW/cm(2)). -
dc.identifier.bibliographicCitation JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, v.49, no.17, pp.3751 - 3758 -
dc.identifier.doi 10.1002/pola.24811 -
dc.identifier.issn 0887-624X -
dc.identifier.scopusid 2-s2.0-79960861532 -
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/3714 -
dc.identifier.url http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=79960861532 -
dc.identifier.wosid 000294383400009 -
dc.language 영어 -
dc.publisher WILEY-BLACKWELL -
dc.title Synthesis and Photovoltaic Properties of Conjugated Copolymers Based on Benzimidazole and Various Thiophene -
dc.type Article -
dc.relation.journalWebOfScienceCategory Polymer Science -
dc.relation.journalResearchArea Polymer Science -
dc.description.journalRegisteredClass scie -
dc.description.journalRegisteredClass scopus -
dc.subject.keywordAuthor conjugated polymers -
dc.subject.keywordAuthor copolymerization -
dc.subject.keywordAuthor dimethyl-2H-benzimidazole -
dc.subject.keywordAuthor photovoltaic cells -
dc.subject.keywordAuthor renewable resources -

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