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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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Correlation between thermal annealing temperature and Joule-heating based insulator-metal transition in VO2 nanobeams

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Title
Correlation between thermal annealing temperature and Joule-heating based insulator-metal transition in VO2 nanobeams
Author
Rathi, ServinPark, Jin-HyungLee, In-yealKim, Min JinBaik, Jeong MinKim, Gil-Ho
Keywords
VANADIUM DIOXIDE NANOBEAMS; PHASE-TRANSITION; NANOPARTICLES; STOICHIOMETRY; MICROSCOPY
Issue Date
201311
Publisher
AMER INST PHYSICS
Citation
APPLIED PHYSICS LETTERS, v.103, no.20, pp.1 - 4
Abstract
Rapid thermal annealing of VO2 nanobeams in an ambient argon environment has been carried out at various temperatures after device fabrication. Our analysis revealed that increasing the annealing temperature from 200°C to 400°C results in the reduction of both ohmic and nanobeam resistances with an appreciable decrease in joule-heating based transition voltage and transition temperature, while samples annealed at 500°C exhibited a conducting rutile-phase like characteristics at room temperature. In addition, these variation trends were explored using a physical model and the results were found to be in agreement with the observed results, thus verifying the model.
URI
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DOI
http://dx.doi.org/10.1063/1.4831995
ISSN
0003-6951
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MSE_Journal Papers
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