Thermochromic V1-xWxO2 Thin Films Prepared by Wet Coating Using Polyvanadate Solutions
- 1 April 1996
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 35 (4A) , L438
- https://doi.org/10.1143/jjap.35.l438
Abstract
Metallic vanadium powder was dissolved in a hydrogen peroxide solution, yielding a hydrosol based on a polyvanadate. A polycrystalline thin film of VO2 was fabricated on a fused silica substrate by spin-coating using this hydrosol followed by reduction in hydrogen and additional post-annealing in a nitrogen atmosphere. The thin film showed a sharp semiconductor-to-metal transition and concomitant thermochromic switching at 67° C. Tungsten-doped thin films ( V1- x W x O2) were easily fabricated by a similar technique. The transition temperature of a doped film with x=0.015 was as low as 36° C.Keywords
This publication has 18 references indexed in Scilit:
- Preparation and lithium intercalation of a new vanadium oxide with a two-dimensional structureSolid State Ionics, 1995
- Evolution of thermochromism during oxidation of evaporated vanadium filmsApplied Optics, 1991
- Vacuum-ultraviolet reflectance and photoemission study of the metal-insulator phase transitions in , , andPhysical Review B, 1990
- Modifications in the phase transition properties of predeposited VO2 filmsJournal of Vacuum Science & Technology A, 1984
- Undoped and doped VO2 films grown from VO(OC3H7)3Thin Solid Films, 1983
- Essai sur la structure de VO2(B)Journal of Solid State Chemistry, 1976
- Metal-insulator transition in vanadium dioxidePhysical Review B, 1975
- Phase Relation of V205-V203 System-at below 500°CThe Journal of the Society of Chemical Industry, Japan, 1968
- Reduction Processes from NH4VO3 or V205 to V203 under Hydrogen AtmosphereThe Journal of the Society of Chemical Industry, Japan, 1968
- Oxides Which Show a Metal-to-Insulator Transition at the Neel TemperaturePhysical Review Letters, 1959