Insertion of chlorine atoms onto pi-bridges of conjugated polymer enables improved photovoltaic performance
DC Field | Value | Language |
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dc.contributor.author | Ye, Linglong | - |
dc.contributor.author | Xie, Yuanpeng | - |
dc.contributor.author | Weng, Kangkang | - |
dc.contributor.author | Ryu, Hwa Sook | - |
dc.contributor.author | Li, Chao | - |
dc.contributor.author | Cai, Yunhao | - |
dc.contributor.author | Fu, Huiting | - |
dc.contributor.author | Wei, Donghui | - |
dc.contributor.author | Woo, Han Young | - |
dc.contributor.author | Tan, Songting | - |
dc.contributor.author | Sun, Yanming | - |
dc.date.accessioned | 2021-09-01T16:57:54Z | - |
dc.date.available | 2021-09-01T16:57:54Z | - |
dc.date.created | 2021-06-19 | - |
dc.date.issued | 2019-04 | - |
dc.identifier.issn | 2211-2855 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/66465 | - |
dc.description.abstract | pi-Bridges play a crucially important role in determining the optical absorption, bandgap and energy levels of donor-pi-acceptor-pi type conjugated polymers. In this contribution, a new polymer donor named PBT1-C-2Cl is synthesized by inserting the chlorine atoms onto pi-bridges of the polymer PBT1-C. The introduction of chlorine atoms enables PBT1-C-2Cl with a lower highest occupied molecular orbital energy level and enhanced crystallinity than those of PBT1-C due to the high electronegativity and big atomic radius of chloride atom. When PBT1-C-2Cl is blended with the non-fullerene acceptor IT-4F, a high power conversion efficiency (PCE) of 12.7%, an open-circuit voltage (V-oc) of 0.85 V and an impressive fill factor (FF) of 76.0% are achieved, which are all higher than those of PBT1-C:IT-4F based devices (PCE = 10.9%, V-oc = 0.79 V and FF = 70.5%). The enhanced charge dissociation, efficient charge transport and reduced charge recombination account for the improved photovoltaic performance of PBT1-C-2Cl:IT-4F devices. The results indicate that inserting chlorine atoms onto pi-bridges is a rational strategy for the synthesis of high-performance donor-pi-acceptor-pi type conjugated polymer donors. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER SCIENCE BV | - |
dc.subject | ORGANIC SOLAR-CELLS | - |
dc.subject | FULLERENE | - |
dc.subject | EFFICIENCY | - |
dc.subject | MORPHOLOGY | - |
dc.subject | SUBSTITUTION | - |
dc.subject | COPOLYMERS | - |
dc.subject | ACCEPTOR | - |
dc.subject | DONOR | - |
dc.title | Insertion of chlorine atoms onto pi-bridges of conjugated polymer enables improved photovoltaic performance | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Woo, Han Young | - |
dc.identifier.doi | 10.1016/j.nanoen.2019.01.039 | - |
dc.identifier.scopusid | 2-s2.0-85060102344 | - |
dc.identifier.wosid | 000461433600027 | - |
dc.identifier.bibliographicCitation | NANO ENERGY, v.58, pp.220 - 226 | - |
dc.relation.isPartOf | NANO ENERGY | - |
dc.citation.title | NANO ENERGY | - |
dc.citation.volume | 58 | - |
dc.citation.startPage | 220 | - |
dc.citation.endPage | 226 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Nanoscience & Nanotechnology | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.subject.keywordPlus | ORGANIC SOLAR-CELLS | - |
dc.subject.keywordPlus | FULLERENE | - |
dc.subject.keywordPlus | EFFICIENCY | - |
dc.subject.keywordPlus | MORPHOLOGY | - |
dc.subject.keywordPlus | SUBSTITUTION | - |
dc.subject.keywordPlus | COPOLYMERS | - |
dc.subject.keywordPlus | ACCEPTOR | - |
dc.subject.keywordPlus | DONOR | - |
dc.subject.keywordAuthor | Organic solar cells | - |
dc.subject.keywordAuthor | Conjugated polymers | - |
dc.subject.keywordAuthor | Chlorinated thiophene | - |
dc.subject.keywordAuthor | pi-bridge | - |
dc.subject.keywordAuthor | Power conversion efficiency | - |
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