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Efficient solution-processed small-molecule solar cells by insertion of graphene quantum dots

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dc.contributor.authorWang, Dong Hwan-
dc.contributor.authorKim, Jung Kyu-
dc.contributor.authorKim, Sang Jin-
dc.contributor.authorHong, Byung Hee-
dc.contributor.authorPark, Jong Hyeok-
dc.date.accessioned2021-01-31T08:33:17Z-
dc.date.available2021-01-31T08:33:17Z-
dc.date.issued2014-10-
dc.identifier.citationNanoscale, Vol.6 No.24, pp.15175-15180-
dc.identifier.issn2040-3364-
dc.identifier.other106744-
dc.identifier.urihttps://hdl.handle.net/10371/172231-
dc.description.abstractIn this work, we have demonstrated the results of several positive effects that arise from the addition of graphene quantum dots (GQDs) to solution-processed small molecule bulk-heterojunction (SM-BHJ) solar cells fabricated from a p-DTS(FBTTh2)(2)/[6,6]-phenyl C-71 butyric acid methyl-ester (PC71BM). The device with an optimized ratio of GQDs exhibits increased current density and fill factor owing to 10% improved external quantum efficiency (EQE) and induction of a favorable SM-BHJ morphology. Additionally, the multiple scattering of the GQDs in the SM-BHJ leads to longer optical pathlengths according to the analysis of diffuse reflectance spectra and UV/Vis absorption spectra. The GQD inserted SM-BHJ film at the optimized concentration exhibits decreased charge transport resistance significantly by impedance measurements with effective charge extraction in the device which contributes to 15% enhancement of power conversion efficiency (PCE).-
dc.titleEfficient solution-processed small-molecule solar cells by insertion of graphene quantum dots-
dc.typeArticle-
dc.contributor.AlternativeAuthor홍병희-
dc.identifier.doi10.1039/c4nr04944f-
dc.citation.journaltitleNanoscale-
dc.identifier.scopusid2-s2.0-84911941667-
dc.citation.endpage15180-
dc.citation.number24-
dc.citation.startpage15175-
dc.citation.volume6-
dc.identifier.rimsid106744-
dc.identifier.sci000345458200072-
dc.contributor.affiliatedAuthorHong, Byung Hee-
Appears in Collections:
College of Natural Sciences (자연과학대학)Dept. of Chemistry (화학부)Journal Papers (저널논문_화학부)
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