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dc.contributor.authorMoon, Byung Joon-
dc.contributor.authorJang, Dawon-
dc.contributor.authorYi, Yeonjin-
dc.contributor.authorLee, Hyunbok-
dc.contributor.authorKim, Sang Jin-
dc.contributor.authorOh, Yelin-
dc.contributor.authorLee, Sang Hyun-
dc.contributor.authorPark, Min-
dc.contributor.authorLee, Sungho-
dc.contributor.authorBae, Sukang-
dc.date.accessioned2024-01-20T02:00:21Z-
dc.date.available2024-01-20T02:00:21Z-
dc.date.created2021-09-01-
dc.date.issued2017-04-
dc.identifier.issn2211-2855-
dc.identifier.urihttps://pubs.kist.re.kr/handle/201004/122886-
dc.description.abstractThe tunable heteroatom doping density in graphene quantum dots (GQDs) can provide unique opportunities for advanced electrochemical and opto-electronic applications with control of intrinsic properties that allow exploiting new phenomena. Herein, we report a facile one-step synthesis of the nitrogen-doped high crystallinity GQDs (nGQDs) from poly-acrylonitrile (PAN)-based CFs using the solvo-thermal cutting method. Interestingly, the optical properties of nGQDs can be simply controlled by varying the heat treatment temperature of the CFs with different N contents. We also conduct an in-depth study on the optical properties of nGQDs according to the variation of N atom density that can be readily modulated by controlling the graphitization temperature of CFs, via both experimental and computational analyses. The synthesized nGQDs are blended with PEDOT:PSS as an anodic buffer layer to induce efficient hole extraction and energy-down-shift in organic photovoltaic (OPV) devices that provide an enhanced power conversion efficiency (PCE) from 7.5% to 8.5%. Because of the wide absorption band, high carrier extraction, and non-toxicity, these nGQDs are demonstrated to be excellent probes for high-performance opto-electronic applications.-
dc.languageEnglish-
dc.publisherELSEVIER-
dc.subjectREDUCTION-
dc.subjectOXIDE-
dc.subjectPHOTOLUMINESCENT-
dc.subjectEFFICIENCY-
dc.subjectCONVERSION-
dc.subjectFLUORESCENCE-
dc.subjectIMPROVEMENT-
dc.subjectENHANCEMENT-
dc.subjectELECTRON-
dc.subjectSHEETS-
dc.titleMulti-functional nitrogen self-doped graphene quantum dots for boosting the photovoltaic performance of BHJ solar cells-
dc.typeArticle-
dc.identifier.doi10.1016/j.nanoen.2017.02.013-
dc.description.journalClass1-
dc.identifier.bibliographicCitationNANO ENERGY, v.34, pp.36 - 46-
dc.citation.titleNANO ENERGY-
dc.citation.volume34-
dc.citation.startPage36-
dc.citation.endPage46-
dc.description.journalRegisteredClassscie-
dc.description.journalRegisteredClassscopus-
dc.identifier.wosid000400383300005-
dc.identifier.scopusid2-s2.0-85013168471-
dc.relation.journalWebOfScienceCategoryChemistry, Physical-
dc.relation.journalWebOfScienceCategoryNanoscience & Nanotechnology-
dc.relation.journalWebOfScienceCategoryMaterials Science, Multidisciplinary-
dc.relation.journalWebOfScienceCategoryPhysics, Applied-
dc.relation.journalResearchAreaChemistry-
dc.relation.journalResearchAreaScience & Technology - Other Topics-
dc.relation.journalResearchAreaMaterials Science-
dc.relation.journalResearchAreaPhysics-
dc.type.docTypeArticle-
dc.subject.keywordPlusREDUCTION-
dc.subject.keywordPlusOXIDE-
dc.subject.keywordPlusPHOTOLUMINESCENT-
dc.subject.keywordPlusEFFICIENCY-
dc.subject.keywordPlusCONVERSION-
dc.subject.keywordPlusFLUORESCENCE-
dc.subject.keywordPlusIMPROVEMENT-
dc.subject.keywordPlusENHANCEMENT-
dc.subject.keywordPlusELECTRON-
dc.subject.keywordPlusSHEETS-
dc.subject.keywordAuthorPAN fiber-
dc.subject.keywordAuthorHydrothermal cutting-
dc.subject.keywordAuthorN-doped graphene quantum dot-
dc.subject.keywordAuthorPhotoluminescence-
dc.subject.keywordAuthorHole transport layer-
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KIST Article > 2017
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