Selenium-containing two-dimensional conjugated fused-ring electron acceptors for enhanced crystal packing, charge transport, and photovoltaic performance
DC Field | Value | Language |
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dc.contributor.author | Wan, Shi-Sheng | - |
dc.contributor.author | Zhao, Qiaoqiao | - |
dc.contributor.author | Jiang, Zhao | - |
dc.contributor.author | Yuan, Gui-Zhou | - |
dc.contributor.author | Yan, Lu | - |
dc.contributor.author | Ryu, Hwa Sook | - |
dc.contributor.author | Mahmood, Asif | - |
dc.contributor.author | Liu, Yan-Qiang | - |
dc.contributor.author | Li, Heng | - |
dc.contributor.author | Woo, Han Young | - |
dc.contributor.author | He, Feng | - |
dc.contributor.author | Wang, Jin-Liang | - |
dc.date.accessioned | 2022-02-27T05:40:37Z | - |
dc.date.available | 2022-02-27T05:40:37Z | - |
dc.date.created | 2022-02-09 | - |
dc.date.issued | 2021-07-28 | - |
dc.identifier.issn | 2050-7488 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/137098 | - |
dc.description.abstract | Although two-dimensional fused-ring electron acceptors (FREAs) have recently attracted increasing attention, designing highly efficient two-dimensional FREAs with a new heterocycle-based two-dimensional central core for further development is still a great challenge. Herein, two chlorinated two-dimensional fused-ring electron acceptors (namely C8T-BDT4Cl and C8T-BDSe4Cl) were synthesized for polymer solar cells, featuring with the two-dimensional conjugated central donor units by alkylthienyl-substituted benzo[1,2-b:4,5-b ']dithiophene (BDT) and benzo[1,2-b:4,5-b']diselenophene (BDSe), respectively. Compared with C8T-BDT4Cl, C8T-BDSe4Cl exhibits a red-shifted absorption spectrum and a narrower optical bandgap. Moreover, we first studied the single crystals of such two-dimensional conjugated FREAs and the crystallographic analysis indicates that both acceptors presented 3D network packing with three independent molecular conformations, but C8T-BDSe4Cl exhibits more enhanced multiple intermolecular interactions with slightly shorter pi-pi interaction distances. A C8T-BDSe4Cl:PM6-based blend film exhibited a more favorable morphology with better face-on intermolecular packing with a longer coherent length and more suitable phase separation, resulting in more efficient charge separation, transport, and collection. Consequently, benefiting from the above-mentioned merits, polymer solar cells (PSCs) based on C8T-BDSe4Cl:PM6 presented a much higher power conversion efficiency (PCE) of 13.5% with higher J(sc) than that of sulfur-containing analogue-based C8T-BDT4Cl:PM6 (12.2%). These results indicate a unique application prospect of the selenium-substituted FREAs and demonstrate that combination of the two-dimensional conjugated central core and selenium-substituted in the central electron-rich position strategy is an effective approach to improve the J(sc) value and PCE of two-dimensional FREA-based PSCs. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ROYAL SOC CHEMISTRY | - |
dc.subject | NON-FULLERENE ACCEPTORS | - |
dc.subject | ORGANIC SOLAR-CELLS | - |
dc.subject | SMALL-MOLECULE ACCEPTOR | - |
dc.subject | END-GROUPS | - |
dc.subject | EFFICIENCY | - |
dc.subject | STRATEGY | - |
dc.subject | SUBSTITUTION | - |
dc.subject | MISCIBILITY | - |
dc.subject | UNIT | - |
dc.title | Selenium-containing two-dimensional conjugated fused-ring electron acceptors for enhanced crystal packing, charge transport, and photovoltaic performance | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Woo, Han Young | - |
dc.identifier.doi | 10.1039/d1ta03196a | - |
dc.identifier.scopusid | 2-s2.0-85110981235 | - |
dc.identifier.wosid | 000670334100001 | - |
dc.identifier.bibliographicCitation | JOURNAL OF MATERIALS CHEMISTRY A, v.9, no.28, pp.15665 - 15677 | - |
dc.relation.isPartOf | JOURNAL OF MATERIALS CHEMISTRY A | - |
dc.citation.title | JOURNAL OF MATERIALS CHEMISTRY A | - |
dc.citation.volume | 9 | - |
dc.citation.number | 28 | - |
dc.citation.startPage | 15665 | - |
dc.citation.endPage | 15677 | - |
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 | Energy & Fuels | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Energy & Fuels | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.subject.keywordPlus | EFFICIENCY | - |
dc.subject.keywordPlus | END-GROUPS | - |
dc.subject.keywordPlus | MISCIBILITY | - |
dc.subject.keywordPlus | NON-FULLERENE ACCEPTORS | - |
dc.subject.keywordPlus | ORGANIC SOLAR-CELLS | - |
dc.subject.keywordPlus | SMALL-MOLECULE ACCEPTOR | - |
dc.subject.keywordPlus | STRATEGY | - |
dc.subject.keywordPlus | SUBSTITUTION | - |
dc.subject.keywordPlus | UNIT | - |
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