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DC Field | Value | Language |
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dc.citation.endPage | 39646 | - |
dc.citation.number | 33 | - |
dc.citation.startPage | 39636 | - |
dc.citation.title | ACS APPLIED MATERIALS & INTERFACES | - |
dc.citation.volume | 15 | - |
dc.contributor.author | Yang, Sangjin | - |
dc.contributor.author | Park, Jaeyeong | - |
dc.contributor.author | Jeong, Seonghun | - |
dc.contributor.author | Cho, Yongjoon | - |
dc.contributor.author | Jeong, Mingyu | - |
dc.contributor.author | Oh, Jiyeon | - |
dc.contributor.author | Lee, Seunglok | - |
dc.contributor.author | Park, Jeewon | - |
dc.contributor.author | Yoon, Seong-Jun | - |
dc.contributor.author | Yang, Changduk | - |
dc.date.accessioned | 2023-12-21T11:47:16Z | - |
dc.date.available | 2023-12-21T11:47:16Z | - |
dc.date.created | 2023-09-06 | - |
dc.date.issued | 2023-08 | - |
dc.description.abstract | Alongsidehigh power conversion efficiencies (PCEs), device stability,especially thermal issues, is another key factor for the successfulcommercialization of nonfullerene acceptor (NFA)-based organic solarcells (OSCs). Considering the significant effects of the side-chainengineering of NFAs on molecular packing and/or locking strongly associatedwith the thermal stability of OSCs, herein, we present two new isomericNFAs with 4-fluoro- and 2-fluoro-substituted hexylphenyl two-dimensional(2D) outer side chains (4FY and 2FY, respectively).In contrast with the 2FY having a horizontal stretchingconformation, 4FY exhibits a diagonal stretching conformationof the 2D outer side chains and a higher dipole moment, resultingin a huge difference in their crystalline/aggregation characteristics,i.e., 4FY possesses a higher crystallinity with a densermolecular packing than the 2FY neat film, as evidencedby thermal and morphological characterizations. Encouragingly, relativeto the one based on 2FY, the OSC based on 4FY delivers a PCE as high as 16.4%, together with excellent thermalstability (88.4% PCE retention under 85 & DEG;C for 360 h), whichis attributed to a more optimal and robust blend morphology inducedby its better compatibility into the used donor component and strongercrystallinity. This work demonstrates that in addition to the improvedphotovoltaic property, the appropriate F-positioning on the 2D outerside chains can play a key role in controlling their conformations,which can promote the increase of the thermal stability of OSCs. | - |
dc.identifier.bibliographicCitation | ACS APPLIED MATERIALS & INTERFACES, v.15, no.33, pp.39636 - 39646 | - |
dc.identifier.doi | 10.1021/acsami.3c06596 | - |
dc.identifier.issn | 1944-8244 | - |
dc.identifier.scopusid | 2-s2.0-85168779377 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/65429 | - |
dc.identifier.wosid | 001048149100001 | - |
dc.language | 영어 | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.title | Conformational Locking Control of 2D Outer Side Chains via Fluorine Atom Positioning for Improving the Thermal Stability of 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 | conformational locking | - |
dc.subject.keywordAuthor | device thermal stability | - |
dc.subject.keywordAuthor | direction of 2D outer sidechain | - |
dc.subject.keywordAuthor | nonfullerene acceptor | - |
dc.subject.keywordAuthor | organic solar cell | - |
dc.subject.keywordPlus | GLASS-TRANSITION | - |
dc.subject.keywordPlus | EFFICIENCY | - |
dc.subject.keywordPlus | ACCEPTOR | - |
dc.subject.keywordPlus | TEMPERATURE | - |
dc.subject.keywordPlus | MORPHOLOGY | - |
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