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dc.contributor.authorKWON, HYUNAHko
dc.contributor.authorYOON, JUN SIKko
dc.contributor.authorYuna Leeko
dc.contributor.authorDONG, YEONG KIMko
dc.contributor.authorBAEK, CHANG KIko
dc.contributor.authorKIM, JONG KYUko
dc.date.accessioned2018-01-04T06:39:16Z-
dc.date.available2018-01-04T06:39:16Z-
dc.date.created2017-12-04-
dc.date.issued2018-02-
dc.identifier.citationSENSORS AND ACTUATORS B-CHEMICAL, v.255, pp.1663 - 1670-
dc.identifier.issn0925-4005-
dc.identifier.urihttp://oasis.postech.ac.kr/handle/2014.oak/38937-
dc.description.abstractNano-helical array of p-NiO/n-SnO2 p-n junctions with well-defined and highly-gas-accessible hetero-interfaces is presented for designable and highly selective gas sensors. The gas sensor having the nanoscale p-n junction sensing layer with a top-and-bottom electrodes configuration was fabricated by conventional photolithography and oblique-angle deposition. The unique device structure enables a predominant modulation in barrier height at the hetero-interfaces, consistent with simulation results, resulting in unusual-yet-promising sensing behaviors upon H-2 and NO2 exposure. Based on our experimental and simulation results, and the ability to fabricate a variety combination of metal oxides heterostructures with a reproducible and controllable way, we believe that it becomes possible to design and realize highly-selective sensor array electronic-noses optimized towards target gases on demand. (C) 2017 Elsevier B.V. All rights reserved.-
dc.languageEnglish-
dc.publisherELSEVIER SCIENCE SA-
dc.subjectMetal oxide-
dc.subjectGas sensor-
dc.subjectNanoscale p-n junction-
dc.subjectElectronic noses-
dc.subjectOblique-angle deposition-
dc.titleAn array of metal oxides nanoscale hetero p-n junctions toward designable and highly-selective gas sensors-
dc.typeArticle-
dc.identifier.doi10.1016/j.snb.2017.08.173-
dc.type.rimsART-
dc.contributor.localauthorBAEK, CHANG KI-
dc.contributor.localauthorKIM, JONG KYU-
dc.contributor.nonIdAuthorYuna Lee-
dc.identifier.wosid000414319900061-
dc.citation.endPage1670-
dc.citation.startPage1663-
dc.citation.titleSENSORS AND ACTUATORS B-CHEMICAL-
dc.citation.volume255-
dc.description.journalClass1-

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