Improvement of the thermal stability of Nb:TiO2-x samples for uncooled infrared detectors

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dc.contributor.authorReddy, Y. Ashok Kumarko
dc.contributor.authorKang, In-Kuko
dc.contributor.authorShin, Young Bongko
dc.contributor.authorLee, Hee Chulko
dc.date.accessioned2018-01-30T04:15:08Z-
dc.date.available2018-01-30T04:15:08Z-
dc.date.created2018-01-08-
dc.date.created2018-01-08-
dc.date.issued2018-01-
dc.identifier.citationJOURNAL OF PHYSICS D-APPLIED PHYSICS, v.51, no.2-
dc.identifier.issn0022-3727-
dc.identifier.urihttp://hdl.handle.net/10203/238748-
dc.description.abstractIn order to reduce the sun-burn effect in a sample of the bolometric material Nb:TiO2-x, oxygen annealing was carried out. This effect can be examined by comparing thermal stability test results between the as-deposited and oxygen-atmosphere-annealed samples under high-temperature exposure conditions. Structural studies confirm the presence of amorphous and rutile phases in the as-deposited and annealed samples, respectively. Composition studies reveal the offset of oxygen vacancies in the Nb:TiO2-x samples through oxygen-atmosphere annealing. The oxygen atoms were diffused and seemed to occupy the vacant sites in the annealed samples. As a result, the annealed samples show better thermal stability performance than the as-deposited samples. The universal bolometric parameter (beta) values were slightly decreased in the oxygen-annealed Nb:TiO2-x samples. Although bolometric performance was slightly decreased in the oxygen-annealed samples, high thermal stability would be the most essential factor in the case of special applications, such as the military and space industries. Finally, these results will be very useful for reducing the sun-burn effect in infrared detectors.-
dc.languageEnglish-
dc.publisherIOP PUBLISHING LTD-
dc.subjectTIO2 THIN-FILMS-
dc.subjectOXYGEN VACANCY-
dc.subjectBOLOMETER-
dc.subjectDESIGN-
dc.subjectARRAYS-
dc.subjectCONDUCTIVITY-
dc.subjectSPECTROSCOPY-
dc.subjectDEPOSITION-
dc.subjectSUBSTRATE-
dc.subjectSILICON-
dc.titleImprovement of the thermal stability of Nb:TiO2-x samples for uncooled infrared detectors-
dc.typeArticle-
dc.identifier.wosid000417974200003-
dc.identifier.scopusid2-s2.0-85039777679-
dc.type.rimsART-
dc.citation.volume51-
dc.citation.issue2-
dc.citation.publicationnameJOURNAL OF PHYSICS D-APPLIED PHYSICS-
dc.identifier.doi10.1088/1361-6463/aa9b60-
dc.contributor.localauthorLee, Hee Chul-
dc.description.isOpenAccessN-
dc.type.journalArticleArticle-
dc.subject.keywordAuthorNb:TiO2-x film-
dc.subject.keywordAuthorannealing-
dc.subject.keywordAuthoroxygen diffusion-
dc.subject.keywordAuthorthermal stability-
dc.subject.keywordAuthorbolometric properties-
dc.subject.keywordPlusTIO2 THIN-FILMS-
dc.subject.keywordPlusOXYGEN VACANCY-
dc.subject.keywordPlusBOLOMETER-
dc.subject.keywordPlusDESIGN-
dc.subject.keywordPlusARRAYS-
dc.subject.keywordPlusCONDUCTIVITY-
dc.subject.keywordPlusSPECTROSCOPY-
dc.subject.keywordPlusDEPOSITION-
dc.subject.keywordPlusSUBSTRATE-
dc.subject.keywordPlusSILICON-
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