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DC Field | Value | Language |
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dc.citation.startPage | 106120 | - |
dc.citation.title | ORGANIC ELECTRONICS | - |
dc.citation.volume | 92 | - |
dc.contributor.author | Yang, Dengchen | - |
dc.contributor.author | Ma, Qing | - |
dc.contributor.author | Li, Xiaojun | - |
dc.contributor.author | Chen, Shanshan | - |
dc.contributor.author | Zhang, Jinyuan | - |
dc.contributor.author | Yang, Changduk | - |
dc.contributor.author | Meng, Lei | - |
dc.contributor.author | Li, Yongfang | - |
dc.date.accessioned | 2023-12-21T15:51:06Z | - |
dc.date.available | 2023-12-21T15:51:06Z | - |
dc.date.created | 2021-04-27 | - |
dc.date.issued | 2021-05 | - |
dc.description.abstract | A C-2v-symmetric core, dithienocyclopentaspiro[fluorene-9,9'-xanthene], was used as the central block for the first time to design and synthesize A-D-A type small molecule acceptors for nonfullerene polymer solar cells (PSCs), and two new small molecule acceptors of TSFX-2F and TSFX-4F were synthesized based on the C-2v-symmetric core. The two TSFX-based acceptors show high thermal stability, strong absorption in the wavelength region of 550-750 nm and appropriate energy levels. The PSCs with the broad bandgap polymer J71 as donor and TSFX-2F as acceptor demonstrated power conversion efficiency (PCE) of 9.42% with open circuit voltage (V-oc) of 0.89 V, short circuit current density (J(sc)) of 15.27 mA cm(-2) and fill factor (FF) of 69.30%, while the PSC based on J71:TSFX-4F shows a PCE of 8.47% with V-oc of 0.83 V, J(sc) of 15.48 mA cm(-2) and FF of 66.16%. The higher V-oc of the PSC based on J71: TSFX-2F is benefitted from the up-shifted LUMO energy level of the TSFX-2F acceptor, and its higher FF can be ascribed to the higher and more balanced hole and electron mobilities of the J71: TSFX-2F active layer. This work demonstrates that the new C-2v-symmetric building block is a promising central D-unit for the design and synthesis of new structured norfullerene acceptors for high-performance PSCs. | - |
dc.identifier.bibliographicCitation | ORGANIC ELECTRONICS, v.92, pp.106120 | - |
dc.identifier.doi | 10.1016/j.orgel.2021.106120 | - |
dc.identifier.issn | 1566-1199 | - |
dc.identifier.scopusid | 2-s2.0-85101606997 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/55007 | - |
dc.identifier.url | https://www.sciencedirect.com/science/article/pii/S1566119921000604?via%3Dihub | - |
dc.identifier.wosid | 000634803000002 | - |
dc.language | 영어 | - |
dc.publisher | ELSEVIER | - |
dc.title | Two new A-D-A type small molecule acceptors based on C-2v-symmetric dithienocyclopentaspiro[fluorene-9,9 '-xanthene] core for polymer solar cells | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary; Physics, Applied | - |
dc.relation.journalResearchArea | Materials Science; Physics | - |
dc.type.docType | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | A-D-A small molecule acceptors | - |
dc.subject.keywordAuthor | Polymer solar cells | - |
dc.subject.keywordAuthor | C-2v-symmetric core | - |
dc.subject.keywordAuthor | Dithienocyclopentaspiro[fluorene-9,9 &apos | - |
dc.subject.keywordAuthor | -xanthene] | - |
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