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DC Field | Value | Language |
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dc.citation.endPage | 33625 | - |
dc.citation.number | 29 | - |
dc.citation.startPage | 33614 | - |
dc.citation.title | ACS APPLIED MATERIALS & INTERFACES | - |
dc.citation.volume | 14 | - |
dc.contributor.author | Lee, Seunglok | - |
dc.contributor.author | Park, Geunhyung | - |
dc.contributor.author | Jeong, Mingyu | - |
dc.contributor.author | Lee, Byongkyu | - |
dc.contributor.author | Jeong, Seonghun | - |
dc.contributor.author | Park, Jeewon | - |
dc.contributor.author | Cho, Yongjoon | - |
dc.contributor.author | Noh, Seung Man | - |
dc.contributor.author | Yang, Changduk | - |
dc.date.accessioned | 2023-12-21T14:06:36Z | - |
dc.date.available | 2023-12-21T14:06:36Z | - |
dc.date.created | 2022-08-10 | - |
dc.date.issued | 2022-07 | - |
dc.description.abstract | Modifying the end-capping groups in nonfullerene acceptors (NFAs) is an effective strategy for modulating their properties and that of the entire NFAs. This study reports the synthesis of a novel gamma-ester-functionalized IC end-capping group (IC-gamma e) and its incorporation into the benzothiadiazole-fused central core, yielding isomer-free IC-gamma e end-capped NFAs, such as Y-IC-gamma e, Y-FIC-gamma e, and Y-ClIC-gamma e. The resultant NFAs exhibited similar absorption profiles but upshifted the lowest unoccupied molecular orbital energy level compared with those of the ester-free analogues, such as Y6 and Y7. Without thermal annealing, an excellent power conversion efficiency (PCE) of 16.4% is realized in the annealing-free OSC based on Y-FIC-gamma e with the PM6 donor polymer, which outperforms the OSCs based on Y-IC-gamma e and Y-ClIC-gamma e. In addition, the OSCs based on asymmetric Y-FIC-gamma e and Y-ClIC-gamma e have higher thermal stability with more than 83% PCE retention at an elevated temperature after 456 h than the symmetric Y-IC-gamma e case. In this study, we not only establish the structure-property relationship regarding the ester functionality and symmetricity tuning on the NFAs but also diagnose the reasons for the best-performing Y-FIC-gamma e-based OSCs, providing useful information for a novel high-performing NFA design strategy. | - |
dc.identifier.bibliographicCitation | ACS APPLIED MATERIALS & INTERFACES, v.14, no.29, pp.33614 - 33625 | - |
dc.identifier.doi | 10.1021/acsami.2c08370 | - |
dc.identifier.issn | 1944-8244 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/59062 | - |
dc.identifier.wosid | 000831233600001 | - |
dc.language | 영어 | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.title | gamma-Ester-Functionalized 1,1-Dicyanomethylene-3-indanone End-Capped Nonfullerene Acceptors for High-Performance, Annealing-Free Organic Solar Cells | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Nanoscience & Nanotechnology; Materials Science, Multidisciplinary | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics; Materials Science | - |
dc.type.docType | Article; Early Access | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | isomer-free ester functionalization | - |
dc.subject.keywordAuthor | annealing-free | - |
dc.subject.keywordAuthor | end-capping group modification | - |
dc.subject.keywordAuthor | dipole moment | - |
dc.subject.keywordAuthor | thermal stability | - |
dc.subject.keywordAuthor | organic solar cells | - |
dc.subject.keywordAuthor | nonfullerene acceptor | - |
dc.subject.keywordPlus | NON-FULLERENE ACCEPTORS | - |
dc.subject.keywordPlus | ELECTRON-ACCEPTORS | - |
dc.subject.keywordPlus | EFFICIENCY | - |
dc.subject.keywordPlus | ENABLES | - |
dc.subject.keywordPlus | GAP | - |
dc.subject.keywordPlus | STABILITY | - |
dc.subject.keywordPlus | RING | - |
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