A comparison of thermo- and photo-chromic behaviour in films of amorphous WO3 |
| |
| Authors: | M.R. Goulding C.B. Thomas R.J. Hurditch |
| |
| Affiliation: | 1. School of Applied Physics and Physical Electronics, University of Bradford, Bradford, W. Yorks. U.K. |
| |
| Abstract: | Amorphous films of WO3 have been prepared by sublimation in a partiaal pressure of oxygen, and then coloured by either heat-treatment or U.V. radiation. Thermo-chromic films are extremely stable with respect to oxygen and have been compared with oxygen deficient crystals of WO3. Photo-chromic films are extremely unstable in an oxygen environment similar to hydrogen tungsten bronzes. The variation of the thermoelectric power with colouration suggests that the density-of-states in the neighbourhood of the Fermi energy differs in films coloured by the two methods. |
| |
| Keywords: | (present address): P.P.G. Industries P.O. Box 31 Barbeton Ohio 44203 U.S.A. |
| 本文献已被 ScienceDirect 等数据库收录！ |
