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Baik, Jeong Min
Nano Energy and Environmental Materials Lab
Research Interests
  • Nanogenerators, antimicrobial material, catalysis, smart sensors

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Unravelling the switching mechanisms in electric field induced insulator-metal transitions in VO2 nanobeams

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dc.contributor.author Rathi, Servin ko
dc.contributor.author Park, Jin-Hyung ko
dc.contributor.author Lee, In-yeal ko
dc.contributor.author Baik, Jeong Min ko
dc.contributor.author Yi, Kyung Soo ko
dc.contributor.author Kim, Gil-Ho ko
dc.date.available 2014-07-30T05:43:21Z -
dc.date.created 2014-07-30 ko
dc.date.issued 2014-07 ko
dc.identifier.citation JOURNAL OF PHYSICS D-APPLIED PHYSICS, v.47, no.29, pp.1 - 8 ko
dc.identifier.issn 0022-3727 ko
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/5277 -
dc.description.abstract We studied insulator-metal transitions in VO2 nanobeams for both abrupt and gradual changes in applied electric fields. Based on the observations, the Poole-Frenkel effect explained the abrupt transition, while the gradual case is found to be dominated by the Joule heating phenomenon. We also carried out power model and finite element method based simulations which supported the Joule heating phenomena for gradual transition. An in-principle demonstration of the Poole-Frenkel effect, performed using a square voltage pulse of 1 μ s duration, further confirms the proposed insulator-metal transition mechanism with a switching time in the order of 100 ns. Finally, conductivity variations introduced via rapid thermal annealing at various temperatures validate the roles of both Joule heating and Poole-Frenkel mechanisms in the transitions. ko
dc.description.statementofresponsibility close -
dc.language 영어 ko
dc.publisher IOP PUBLISHING LTD ko
dc.title Unravelling the switching mechanisms in electric field induced insulator-metal transitions in VO2 nanobeams ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-84903740685 ko
dc.identifier.wosid 000338860300004 ko
dc.type.rims ART ko
dc.description.wostc 0 *
dc.description.scopustc 0 *
dc.date.tcdate 2015-05-06 *
dc.date.scptcdate 2014-07-30 *
dc.identifier.doi 10.1088/0022-3727/47/29/295101 ko
dc.identifier.url http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84903740685 ko
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