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Proceedings Paper

Optical and spectral properties of VO2 thin films prepared by the sol-gel method
Author(s): Songwei Lu
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Paper Abstract

V02 thin films have been prepared by the sol-gel dip-coating process followed by vacuum heat treatment. The transmittance(T), reflectivity(R) and thickness(d) of these films were measured at room temperature(20°C) and 100°C respectively, and the absorption coefficient( d),refractive index(n) and extinction coefficient(k) were calculated based on the experimen_ tal results. These films show reversible IR transmittance(reflectivity)-Temperature hystere- sis round 67°C, indicating the occurence of phase transition in the films. The IR absorption spectra of the films during heating and cooling were also measured and compared. The possi- bility of using these films for optical storage is discussed.

Paper Details

Date Published: 1 July 1990
PDF: 2 pages
Proc. SPIE 1230, International Conference on Optoelectronic Science and Engineering '90, 12306P (1 July 1990); doi: 10.1117/12.2294878
Show Author Affiliations
Songwei Lu, Shanghai Institute of Optics and Fine Mechanics (China)


Published in SPIE Proceedings Vol. 1230:
International Conference on Optoelectronic Science and Engineering '90
DaHeng Wang, Editor(s)

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