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양창덕

Yang, Changduk
Advanced Tech-Optoelectronic Materials Synthesis Lab.
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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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