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DC Field | Value | Language |
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dc.citation.endPage | 230 | - |
dc.citation.number | 1 | - |
dc.citation.startPage | 226 | - |
dc.citation.title | JOURNAL OF PHYSICAL CHEMISTRY C | - |
dc.citation.volume | 116 | - |
dc.contributor.author | Byon, Ji Won | - |
dc.contributor.author | Kim, Min-Bin | - |
dc.contributor.author | Kim, Myung Hwa | - |
dc.contributor.author | Kim, Sung Youb | - |
dc.contributor.author | Lee, Sang Hyun | - |
dc.contributor.author | Lee, Byung Cheol | - |
dc.contributor.author | Baik, Jeong Min | - |
dc.date.accessioned | 2023-12-22T05:37:16Z | - |
dc.date.available | 2023-12-22T05:37:16Z | - |
dc.date.created | 2013-06-12 | - |
dc.date.issued | 2012-01 | - |
dc.description.abstract | We report highly effective hydrogen gas detection based on the metal insulator transition (MIT) by the electrothermally induced Pd-nanoparticles-decorated vanadium oxide (VO2) nanowire prepared by the efficient and size-controllable growth method originating from V2O5 thin film driven by supercooled liquid nanodroplets. By irradiating a well-defined electron beam into the nanowires, we could significantly increase the conductivity up to four times with only a modest change in the semiconductor-to-metal transition temperature (<2 degrees C). When exposed to trace amounts of hydrogen gas in a single nanowire configuration, the enhanced conductivity gave rise to about a two times as fast transition to metallic phase even near room temperature (similar to 35 degrees C), by reaching much faster (similar to 3x) a critical current density at which the self-heating initiates. Consequently, we achieved the greatly shorter response time as well as lower operating temperature and voltage for the detection of hydrogen gas in a single VO2 nanowire device, which can be attributed to the self-heating effect accelerated by the increase in the conductivity. The single nanowire sensor also shows the capability of detecting selectively hydrogen of different three gases (O-2, CO, and ethylene). | - |
dc.identifier.bibliographicCitation | JOURNAL OF PHYSICAL CHEMISTRY C, v.116, no.1, pp.226 - 230 | - |
dc.identifier.doi | 10.1021/jp2080989 | - |
dc.identifier.issn | 1932-7447 | - |
dc.identifier.scopusid | 2-s2.0-84862916480 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/3108 | - |
dc.identifier.url | https://pubs.acs.org/doi/10.1021/jp2080989 | - |
dc.identifier.wosid | 000298978700027 | - |
dc.language | 영어 | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.title | Electrothermally Induced Highly Responsive and Highly Selective Vanadium Oxide Hydrogen Sensor Based on Metal-Insulator Transition | - |
dc.type | Article | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary | - |
dc.relation.journalResearchArea | Chemistry; Science & Technology - Other Topics; Materials Science | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordPlus | THIN-FILMS | - |
dc.subject.keywordPlus | NANOWIRES | - |
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