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DC Field | Value | Language |
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dc.citation.endPage | 2558 | - |
dc.citation.number | 9 | - |
dc.citation.startPage | 2551 | - |
dc.citation.title | CHEMISTRY-A EUROPEAN JOURNAL | - |
dc.citation.volume | 18 | - |
dc.contributor.author | Lee, Wonho | - |
dc.contributor.author | Choi, Hyosung | - |
dc.contributor.author | Hwang, Sungu | - |
dc.contributor.author | Kim, Jin Young | - |
dc.contributor.author | Woo, Han Young | - |
dc.date.accessioned | 2023-12-22T05:36:24Z | - |
dc.date.available | 2023-12-22T05:36:24Z | - |
dc.date.created | 2013-06-14 | - |
dc.date.issued | 2012-02 | - |
dc.description.abstract | A low-band-gap alternating copolymer, poly{5,6-bis(octyloxy)-4-(thiophen-2-yl)benzo[c]-1,2,5-thiadiazole} (PTBT), was synthesized and investigated for photovoltaic applications. PTBT showed a minimized torsion angle in its main backbone owing to the introduction of solubilizing octyloxy groups on the electron-poor benzothiadiazole unit, thereby resulting in pronounced intermolecular ordering and a deep level of the HOMO (-5.41 eV). By blending PTBT with [6,6]phenyl-C61-butyric acid methyl ester (PC61BM), highly promising performance was achieved with power-conversion efficiencies (PCEs) of 5.9 and 5.3?% for the conventional and inverted devices, respectively, under air mass 1.5 global (AM 1.5G, 100 mW?cm-2) illumination. The open-circuit voltage (VOC0.850.87 V) is one of the highest values reported thus far for thiophene-based polymers (e.g., poly(3-hexylthiophene) VOC0.6 V). The inverted device also achieved a remarkable PCE compared to other devices based on low-band-gap polymers. Ideal film morphology with bicontinuous percolation pathways was expected from the atomic force microscopy (AFM) images, space-charge-limited current (SCLC) mobility, and selected-area electron-diffraction (SAED) measurements. This molecular design strategy is useful for achieving simple, processable, and planar donoracceptor (DA)-type low-band-gap polymers with a deep HOMO for applications in photovoltaic cells. | - |
dc.identifier.bibliographicCitation | CHEMISTRY-A EUROPEAN JOURNAL, v.18, no.9, pp.2551 - 2558 | - |
dc.identifier.doi | 10.1002/chem.201102883 | - |
dc.identifier.issn | 0947-6539 | - |
dc.identifier.scopusid | 2-s2.0-84863156424 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/3590 | - |
dc.identifier.url | http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84863156424 | - |
dc.identifier.wosid | 000300691000015 | - |
dc.language | 영어 | - |
dc.publisher | WILEY-V C H VERLAG GMBH | - |
dc.title | Efficient Conventional- and Inverted-Type Photovoltaic Cells Using a Planar Alternating Polythiophene Copolymer | - |
dc.type | Article | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | charge transfer | - |
dc.subject.keywordAuthor | copolymerization | - |
dc.subject.keywordAuthor | pi interactions | - |
dc.subject.keywordAuthor | polymers | - |
dc.subject.keywordAuthor | solar cells | - |
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