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Yang, Changduk
Advanced Tech-Optoelectronic Materials Synthesis Lab.
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dc.citation.startPage 413 -
dc.citation.title FRONTIERS IN CHEMISTRY -
dc.citation.volume 6 -
dc.contributor.author Qiu, Beibei -
dc.contributor.author Chen, Shanshan -
dc.contributor.author Xue, Lingwei -
dc.contributor.author Sun, Chenkai -
dc.contributor.author Li, Xiaojun -
dc.contributor.author Zhang, Zhi-Guo -
dc.contributor.author Yang, Changduk -
dc.contributor.author Li, Yongfang -
dc.date.accessioned 2023-12-21T20:13:29Z -
dc.date.available 2023-12-21T20:13:29Z -
dc.date.created 2018-10-10 -
dc.date.issued 2018-09 -
dc.description.abstract Two benzothiadiazole (BT)-based small-molecule donors, SM-BT-2OR with alkoxy side chain and SM-BT-2F with fluorine atom substitution, were designed and synthesized for investigating the effect of the substituents on the photovoltaic performance of the donor molecules in all smallmolecule organic solar cells (SM-OSCs). Compared to SM-BT-2OR, the film of SM-BT-2F exhibited red-shifted absorption and deeper HOMO level of -5.36 eV. When blending with n-type organic semiconductor (n-OS) acceptor IDIC, the as-cast devices displayed similar PCE values of 2.33 and 2.76% for the SM-BT-2OR and SM-BT-2F-based devices, respectively. The SM-BT-2OR-based devices with thermal annealing (TA) at 120 degrees C for 10 min showed optimized PCE of 7.20%, however, the SM-BT-2F-based device displayed lower PCE after the TA treatment, which should be ascribed to the undesirable morphology and molecular orientation. Our results reveal that for the SM-OSCs, the substituent groups of small molecule donors have great impact on the film morphology, as well as the photovoltaic performance. -
dc.identifier.bibliographicCitation FRONTIERS IN CHEMISTRY, v.6, pp.413 -
dc.identifier.doi 10.3389/fchem.2018.00413 -
dc.identifier.issn 2296-2646 -
dc.identifier.scopusid 2-s2.0-85063969513 -
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/24995 -
dc.identifier.url https://www.frontiersin.org/articles/10.3389/fchem.2018.00413/full -
dc.identifier.wosid 000444412700001 -
dc.language 영어 -
dc.publisher FRONTIERS MEDIA SA -
dc.title Effects of Alkoxy and Fluorine Atom Substitution of Donor Molecules on the Morphology and Photovoltaic Performance of All Small Molecule Organic Solar Cells -
dc.type Article -
dc.description.isOpenAccess TRUE -
dc.relation.journalWebOfScienceCategory Chemistry, Multidisciplinary -
dc.relation.journalResearchArea Chemistry -
dc.description.journalRegisteredClass scie -
dc.description.journalRegisteredClass scopus -
dc.subject.keywordAuthor benzothiadiazole -
dc.subject.keywordAuthor organic small molecule donors -
dc.subject.keywordAuthor fluorine substitution -
dc.subject.keywordAuthor alkoxy side chain -
dc.subject.keywordAuthor all small molecule organic solar cells -
dc.subject.keywordPlus PROCESSING ADDITIVES -
dc.subject.keywordPlus BULK HETEROJUNCTIONS -
dc.subject.keywordPlus CHARGE SEPARATION -
dc.subject.keywordPlus POLYMER -
dc.subject.keywordPlus EFFICIENCY -
dc.subject.keywordPlus BENZODITHIOPHENE -
dc.subject.keywordPlus GENERATION -
dc.subject.keywordPlus ACCEPTORS -
dc.subject.keywordPlus DYNAMICS -
dc.subject.keywordPlus DISORDER -

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