Thermochromic characteristics of WO3-doped vanadium dioxide thin films prepared by sol-gel method
- Title
- Thermochromic characteristics of WO3-doped vanadium dioxide thin films prepared by sol-gel method
- Author
- 성태현
- Keywords
- A. Films; C. Electrical properties; E. Thermal applications; Thermochromic
- Issue Date
- 2012-01
- Publisher
- Elsevier Science B.V., Amsterdam.
- Citation
- Ceramics international, 2012, 38, P.S589-S593
- Abstract
- Thin films of tungsten-doped vanadium oxide were fabricated on an alumina substrate by spin coating technology. A V2O5 solution was prepared by an inorganic sol–gel method, which was a fairly cheap and effective process. As-coated V2O5 films turned to VO2 films during heat treatment in a reducing gas flow. Non-doped VO2 film exhibited the best switching property of 4.0 orders of magnitude of electrical resistance and a small hysteresis of approximately 5 °C width. Tungsten in VO2 led to a diffuse phase transition and weak jump of electrical resistivity. A reduction of the transition temperature by 15.5 °C/mol was observed for the tungsten doping in this study.
- URI
- https://www.sciencedirect.com/science/article/pii/S0272884211004780?via%3Dihubhttp://hdl.handle.net/20.500.11754/67188
- ISSN
- 0272-8842
- DOI
- 10.1016/j.ceramint.2011.05.104
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > ELECTRICAL AND BIOMEDICAL ENGINEERING(전기·생체공학부) > Articles
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