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Improved photoresponse characteristics of a zno-based uv photodetector by the formation of an amorphous sno2 shell layer

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dc.contributor.authorYoo, Junhyuk-
dc.contributor.authorJung, Uijin-
dc.contributor.authorJung, Bomseumin-
dc.contributor.authorShen, Wenhu-
dc.contributor.authorPark, Jinsub-
dc.date.accessioned2022-07-06T13:21:43Z-
dc.date.available2022-07-06T13:21:43Z-
dc.date.created2021-11-22-
dc.date.issued2021-09-
dc.identifier.issn1424-8220-
dc.identifier.urihttps://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/141023-
dc.description.abstractAlthough ZnO nanostructure-based photodetectors feature a well-established system, they still present difficulties when being used in practical situations due to their slow response time. In this study, we report on how forming an amorphous SnO2 (a-SnO2 ) shell layer on ZnO nanorods (NRs) enhances the photoresponse speed of a ZnO-based UV photodetector (UV PD). Our suggested UV PD, consisting of a ZnO/a-SnO2 NRs core–shell structure, shows a rise time that is 26 times faster than a UV PD with bare ZnO NRs under 365 nm UV irradiation. In addition, the light responsivity of the ZnO/SnO2 NRs PD simultaneously increases by 3.1 times, which can be attributed to the passivation effects of the coated a-SnO2 shell layer. With a wide bandgap (~4.5 eV), the a-SnO2 shell layer can successfully suppress the oxygen-mediated process on the ZnO NRs surface, improving the photoresponse properties. Therefore, with a fast photoresponse speed and a low fabrication temperature, our as-synthesized, a-SnO2-coated ZnO core–shell structure qualifies as a candidate for ZnO-based PDs.-
dc.language영어-
dc.language.isoen-
dc.publisherMDPI-
dc.titleImproved photoresponse characteristics of a zno-based uv photodetector by the formation of an amorphous sno2 shell layer-
dc.typeArticle-
dc.contributor.affiliatedAuthorPark, Jinsub-
dc.identifier.doi10.3390/s21186124-
dc.identifier.scopusid2-s2.0-85114678086-
dc.identifier.wosid000701084100001-
dc.identifier.bibliographicCitationSensors, v.21, no.18, pp.1 - 10-
dc.relation.isPartOfSensors-
dc.citation.titleSensors-
dc.citation.volume21-
dc.citation.number18-
dc.citation.startPage1-
dc.citation.endPage10-
dc.type.rimsART-
dc.type.docTypeArticle-
dc.description.journalClass1-
dc.description.isOpenAccessY-
dc.description.journalRegisteredClassscie-
dc.description.journalRegisteredClassscopus-
dc.relation.journalResearchAreaChemistry-
dc.relation.journalResearchAreaEngineering-
dc.relation.journalResearchAreaInstruments & Instrumentation-
dc.relation.journalWebOfScienceCategoryChemistry, Analytical-
dc.relation.journalWebOfScienceCategoryEngineering, Electrical & Electronic-
dc.relation.journalWebOfScienceCategoryInstruments & Instrumentation-
dc.subject.keywordPlusII-VI semiconductors-
dc.subject.keywordPlusIrradiation-
dc.subject.keywordPlusNanorods-
dc.subject.keywordPlusOxide minerals-
dc.subject.keywordPlusPhotodetectors-
dc.subject.keywordPlusPhotons-
dc.subject.keywordPlusShells (structures)-
dc.subject.keywordPlusWide band gap semiconductors-
dc.subject.keywordPlusFabrication temperature-
dc.subject.keywordPlusPassivation effect-
dc.subject.keywordPlusPhotoresponse characteristics-
dc.subject.keywordPlusPhotoresponses-
dc.subject.keywordPlusShell structure-
dc.subject.keywordPlusUV irradiation-
dc.subject.keywordPlusUV photodetectors-
dc.subject.keywordPlusZnO nanostructures-
dc.subject.keywordPlusZinc oxide-
dc.subject.keywordAuthorCore–shell structure-
dc.subject.keywordAuthorNanostructure-
dc.subject.keywordAuthorSurface passivation-
dc.subject.keywordAuthorUV photodetector-
dc.identifier.urlhttps://www.mdpi.com/1424-8220/21/18/6124-
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