Synthesis, characterization, and transport properties of single-layer pure and molybdenum-doped vanadium oxide thin films on metallic conductive substrates
DC Field | Value | Language |
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dc.contributor.author | Karthikeyan, Muthukkumaran | - |
dc.contributor.author | Um, Sukkee | - |
dc.date.accessioned | 2021-07-30T04:58:56Z | - |
dc.date.available | 2021-07-30T04:58:56Z | - |
dc.date.created | 2021-05-12 | - |
dc.date.issued | 2016-05 | - |
dc.identifier.issn | 0040-6090 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/2566 | - |
dc.description.abstract | Single-layer undoped and 10 mol% molybdenum(Mo)-doped vanadiumoxide (V2O3) thin films with thicknesses of approximately 342 nm are fabricated by an aqueous sol-gel method and then deposited onto 316L stainless steel conductive substrates. The influence of various annealing temperatures (in a nitrogen atmosphere) on the structural and electrical properties of undoped and Mo-doped vanadium oxide thin films is investigated. Through a controlled annealing process, the electrical resistances of the single-layer thin films are optimized to attain the required amount of Joule heating for cold-start fuel cell applications within an ambient temperature range (273.15 to 253.15 K). The films show a negative temperature coefficient (NTC) behavior and a transition from a metal to an insulator at sub-zero temperatures. The highest electrical resistivities are measured to be 0.032 Omega.cm and 0.071 Omega.cm for undoped and Mo-doped vanadium oxide films, respectively, after annealing under 20 sccm N-2 at 673.15 K. Consequently, the equilibrium surface temperature of the single-layer Mo-doped vanadiumoxide thin film increases from 253.15 K to 299.46 K upon induced Joule heating at a current density of 0.1 A.cm(-2). Thus, it is concluded that single-layer NTCMo-doped vanadium oxides can be effectively used for cold-start fuel cell applications. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER SCIENCE SA | - |
dc.title | Synthesis, characterization, and transport properties of single-layer pure and molybdenum-doped vanadium oxide thin films on metallic conductive substrates | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Um, Sukkee | - |
dc.identifier.doi | 10.1016/j.tsf.2016.03.036 | - |
dc.identifier.scopusid | 2-s2.0-84962168805 | - |
dc.identifier.wosid | 000374504700008 | - |
dc.identifier.bibliographicCitation | THIN SOLID FILMS, v.606, pp.63 - 73 | - |
dc.relation.isPartOf | THIN SOLID FILMS | - |
dc.citation.title | THIN SOLID FILMS | - |
dc.citation.volume | 606 | - |
dc.citation.startPage | 63 | - |
dc.citation.endPage | 73 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Coatings & Films | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.relation.journalWebOfScienceCategory | Physics, Condensed Matter | - |
dc.subject.keywordPlus | OPTICAL-PROPERTIES | - |
dc.subject.keywordPlus | COLD-START | - |
dc.subject.keywordPlus | GRAIN-BOUNDARIES | - |
dc.subject.keywordPlus | TEMPERATURE | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | MODEL | - |
dc.subject.keywordPlus | DEFORMATION | - |
dc.subject.keywordPlus | RESISTIVITY | - |
dc.subject.keywordPlus | SCATTERING | - |
dc.subject.keywordPlus | INTERFACE | - |
dc.subject.keywordAuthor | Annealing effects | - |
dc.subject.keywordAuthor | Mo-doped vanadium oxide films | - |
dc.subject.keywordAuthor | Metallic bipolar plates | - |
dc.subject.keywordAuthor | Negative temperature coefficient | - |
dc.subject.keywordAuthor | Joule heating | - |
dc.subject.keywordAuthor | Fuel cell applications | - |
dc.identifier.url | https://www.sciencedirect.com/science/article/pii/S0040609016002200?via%3Dihub | - |
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