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dc.contributor.author문병준-
dc.contributor.author이규승-
dc.contributor.author심재호-
dc.contributor.author박수형-
dc.contributor.author김세호-
dc.contributor.author배수강-
dc.contributor.author박민-
dc.contributor.author이창렬-
dc.contributor.author최원국-
dc.contributor.author이연진-
dc.contributor.author황준연-
dc.contributor.author손동익-
dc.date.accessioned2016-01-14T17:00:02Z-
dc.date.available2016-01-14T17:00:02Z-
dc.date.issued201601-
dc.identifier.citationVOL 20, 221-232-
dc.identifier.issn22112855-
dc.identifier.other46071-
dc.identifier.urihttp://pubs.kist.re.kr/handle/201004/58430-
dc.description.abstractRecently, interfacial engineering approaches as an efficient strategy for improving the power conversion efficiencies (PCEs) of inverted polymer solar cells (iPSCs) has attracted considerable attention. Among various efficient solutions, solution-processed metal-oxide films prepared from metal oxide sol–gel precursors (or nanoparticles) and polymer surface modifiers are typically used as electron selective interfaces in the inverted cell geometry. To present a more effective strategy for surpassing the limitations of traditional methods, such as an unintended increase in series or contact resistance by incompatibility at the organic/inorganic interface, inherently insulating nature of non-conjugated surface modifiers and oxygen adsorption (or photo-induced doping) of metal-oxide layer, we synthesize chemically surface-modified ZnO@graphene core–shell type quantum dots (ZGQDs) with well-characterization of the chemical, optical and electrical properties, and fabricate iPSCs consisting of ITO/PEIE/ZGQD-OAs/photoactive layer/MoO3/Ag. The mono-layered QDs play the multi-functional role as surface modifier, sub-photosensitizer and electron transport layer. Using this effective approach, we achieve the highest conversion efficiency of ~10.3% resulting from improved interfacial properties and efficient charge transfer based on static quenching and charge transfer reaction from ZnO to graphene nanosheets (with drastically reduced τavg (~ 60 ps)), which is verified by various analysis tools.-
dc.publisherNano energy-
dc.subjectpolymer solar cells-
dc.subjectcharge transfer-
dc.subjectquenching-
dc.subjectZnO@graphene quantum dots-
dc.subjectchemically functionalization-
dc.subjectmonolayer-
dc.subjectsurfacemodifiers-
dc.titleEnhanced Photovoltaic Performance of Inverted Polymer Solar Cells utilizing Versatile Chemically Functionalized ZnO@graphene Quantum dot Monolayer-
dc.typeArticle-
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