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DC Field | Value | Language |
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dc.citation.endPage | 15018 | - |
dc.citation.number | 45 | - |
dc.citation.startPage | 15011 | - |
dc.citation.title | JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | - |
dc.citation.volume | 138 | - |
dc.contributor.author | Yang, Yangkang | - |
dc.contributor.author | Zhang, Zhi-Guo | - |
dc.contributor.author | Bin, Haihun | - |
dc.contributor.author | Chen, Shanshan | - |
dc.contributor.author | Gao, Liang | - |
dc.contributor.author | Xue, Lingwei | - |
dc.contributor.author | Yang, Changduk | - |
dc.contributor.author | Li, Yongfang | - |
dc.date.accessioned | 2023-12-21T23:07:38Z | - |
dc.date.available | 2023-12-21T23:07:38Z | - |
dc.date.created | 2016-12-07 | - |
dc.date.issued | 2016-11 | - |
dc.description.abstract | Low bandgap n-type organic semiconductor (n-OS) ITIC has attracted great attention for the application as an acceptor with medium bandgap p-type conjugated polymer as donor in nonfullerene polymer solar cells (PSCs) because of its attractive photovoltaic performance. Here we report a modification on the molecular structure of ITIC by side-chain isomerization with meta-alkyl-phenyl substitution, m-ITIC, to further improve its photovoltaic performance. In a comparison with its isomeric counterpart ITIC with para-alkyl-phenyl substitution, m-ITIC shows a higher film absorption coefficient, a larger crystalline coherence, and higher electron mobility. These inherent advantages of m-ITIC resulted in a higher power conversion efficiency (PCE) of 11.77% for the nonfullerene PSCs with m-ITIC as acceptor and a medium bandgap polymer J61 as donor, which is significantly improved over that (10.57%) of the corresponding devices with ITIC as acceptor. To the best of our knowledge, the PCE of 11.77% is one of the highest values reported in the literature to date for nonfullerene PSCs. More importantly, the m-ITIC-based device shows less thickness-dependent photovoltaic behavior than ITIC-based devices in the active-layer thickness range of 80-360 nm, which is beneficial for large area device fabrication. These results indicate that m-ITIC is a promising low bandgap n-OS for the application as an acceptor in PSCs, and the side-chain isomerization could be an easy and convenient way to further improve the photovoltaic performance of the donor and acceptor materials for high efficiency PSCs. | - |
dc.identifier.bibliographicCitation | JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, v.138, no.45, pp.15011 - 15018 | - |
dc.identifier.doi | 10.1021/jacs.6b09110 | - |
dc.identifier.issn | 0002-7863 | - |
dc.identifier.scopusid | 2-s2.0-84996548586 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/20900 | - |
dc.identifier.url | http://pubs.acs.org/doi/abs/10.1021/jacs.6b09110 | - |
dc.identifier.wosid | 000388428200032 | - |
dc.language | 영어 | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.title | Side-Chain Isomerization on an n-type Organic Semiconductor ITIC Acceptor Makes 11.77% High Efficiency Polymer Solar Cells | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordPlus | POWER CONVERSION EFFICIENCY | - |
dc.subject.keywordPlus | NON-FULLERENE ACCEPTOR | - |
dc.subject.keywordPlus | FIELD-EFFECT TRANSISTORS | - |
dc.subject.keywordPlus | ELECTRON-ACCEPTORS | - |
dc.subject.keywordPlus | NONFULLERENE ACCEPTORS | - |
dc.subject.keywordPlus | PHOTOVOLTAIC PROPERTIES | - |
dc.subject.keywordPlus | ALTERNATIVE STRATEGY | - |
dc.subject.keywordPlus | CONJUGATED POLYMERS | - |
dc.subject.keywordPlus | 3D STRUCTURE | - |
dc.subject.keywordPlus | RING-FUSION | - |
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