A Narrow-Bandgap n-Type Polymer Semiconductor Enabling Efficient All-Polymer Solar Cells
DC Field | Value | Language |
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dc.contributor.author | Shi, Shengbin | - |
dc.contributor.author | Chen, Peng | - |
dc.contributor.author | Chen, Yao | - |
dc.contributor.author | Feng, Kui | - |
dc.contributor.author | Liu, Bin | - |
dc.contributor.author | Chen, Jianhua | - |
dc.contributor.author | Liao, Qiaogan | - |
dc.contributor.author | Tu, Bao | - |
dc.contributor.author | Luo, Jiasi | - |
dc.contributor.author | Su, Mengyao | - |
dc.contributor.author | Guo, Han | - |
dc.contributor.author | Kim, Myung-Gil | - |
dc.contributor.author | Facchetti, Antonio | - |
dc.contributor.author | Guo, Xugang | - |
dc.date.available | 2020-04-20T06:20:39Z | - |
dc.date.issued | 2019-11 | - |
dc.identifier.issn | 0935-9648 | - |
dc.identifier.issn | 1521-4095 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/38793 | - |
dc.description.abstract | Currently, n-type acceptors in high-performance all-polymer solar cells (all-PSCs) are dominated by imide-functionalized polymers, which typically show medium bandgap. Herein, a novel narrow-bandgap polymer, poly(5,6-dicyano-2,1,3-benzothiadiazole-alt-indacenodithiophene) (DCNBT-IDT), based on dicyanobenzothiadiazole without an imide group is reported. The strong electron-withdrawing cyano functionality enables DCNBT-IDT with n-type character and, more importantly, alleviates the steric hindrance associated with typical imide groups. Compared to the benchmark poly(naphthalene diimide-alt-bithiophene) (N2200), DCNBT-IDT shows a narrower bandgap (1.43 eV) with a much higher absorption coefficient (6.15 x 10(4) cm(-1)). Such properties are elusive for polymer acceptors to date, eradicating the drawbacks inherited in N2200 and other high-performance polymer acceptors. When blended with a wide-bandgap polymer donor, the DCNBT-IDT-based all-PSCs achieve a remarkable power conversion efficiency of 8.32% with a small energy loss of 0.53 eV and a photoresponse of up to 870 nm. Such efficiency greatly outperforms those of N2200 (6.13%) and the naphthalene diimide (NDI)-based analog NDI-IDT (2.19%). This work breaks the long-standing bottlenecks limiting materials innovation of n-type polymers, which paves a new avenue for developing polymer acceptors with improved optoelectronic properties and heralds a brighter future of all-PSCs. | - |
dc.language | 영어 | - |
dc.language.iso | ENG | - |
dc.publisher | WILEY-V C H VERLAG GMBH | - |
dc.title | A Narrow-Bandgap n-Type Polymer Semiconductor Enabling Efficient All-Polymer Solar Cells | - |
dc.type | Article | - |
dc.identifier.doi | 10.1002/adma.201905161 | - |
dc.identifier.bibliographicCitation | ADVANCED MATERIALS, v.31, no.46 | - |
dc.description.isOpenAccess | N | - |
dc.identifier.wosid | 000488160900001 | - |
dc.identifier.scopusid | 2-s2.0-85073935269 | - |
dc.citation.number | 46 | - |
dc.citation.title | ADVANCED MATERIALS | - |
dc.citation.volume | 31 | - |
dc.type.docType | Article | - |
dc.publisher.location | 독일 | - |
dc.subject.keywordAuthor | all-polymer solar cells | - |
dc.subject.keywordAuthor | dicyanobenzothiadiazole | - |
dc.subject.keywordAuthor | high absorption coefficient | - |
dc.subject.keywordAuthor | narrow bandgap | - |
dc.subject.keywordAuthor | polymer acceptors | - |
dc.subject.keywordPlus | POWER CONVERSION EFFICIENCY | - |
dc.subject.keywordPlus | HIGH-PERFORMANCE | - |
dc.subject.keywordPlus | ACCEPTOR | - |
dc.subject.keywordPlus | AGGREGATION | - |
dc.subject.keywordPlus | MORPHOLOGY | - |
dc.subject.keywordPlus | DIIMIDES | - |
dc.subject.keywordPlus | MOBILITY | - |
dc.subject.keywordPlus | DESIGN | - |
dc.subject.keywordPlus | DONOR | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Nanoscience & Nanotechnology | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.relation.journalWebOfScienceCategory | Physics, Condensed Matter | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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