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DC Field | Value | Language |
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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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