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Proceedings Paper

Vanadium dioxide thin films for smart windows: optical design and performance improvement
Author(s): Xinfeng He; Congcong Gu; Fei Chen; Xiaofeng Xu
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Paper Abstract

The high quality vanadium dioxide (VO2) thin films have been fabricated successfully on sapphire by a simple novel sputtering oxidation coupling (SOC) method. Transmittance spectra of vanadium dioxide film have been measured between 25 °C and 90 °C. The thin film samples exhibit a good insulator-metal transition near room temperature. The optical constants of VO2 thin film samples were derived by fitting the transmittance spectra using the Drude-Lorentz model. In order to improve the transition efficiency, the thin film thickness was optimized by the optical design. The calculated results with different thin film thickness show that VO2 thin film with 84 nm owns a maximums value of the transition efficiency. This research will promote VO2 thin film optical performance improvement for the smart windows.

Paper Details

Date Published: 16 December 2013
PDF: 6 pages
Proc. SPIE 9068, Eighth International Conference on Thin Film Physics and Applications, 90680G (16 December 2013); doi: 10.1117/12.2054369
Show Author Affiliations
Xinfeng He, Donghua Univ. (China)
Congcong Gu, Donghua Univ. (China)
Fei Chen, Donghua Univ. (China)
Xiaofeng Xu, Donghua Univ. (China)

Published in SPIE Proceedings Vol. 9068:
Eighth International Conference on Thin Film Physics and Applications
Junhao Chu; Chunrui Wang, Editor(s)

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