Vanadium dioxide thin films for smart windows: optical design and performance improvement

Xinfeng He; Congcong Gu; Fei Chen; Xiaofeng Xu

doi:10.1117/12.2054369

16 December 2013 Vanadium dioxide thin films for smart windows: optical design and performance improvement

Xinfeng He, Congcong Gu, Fei Chen, Xiaofeng Xu

Proceedings Volume 9068, Eighth International Conference on Thin Film Physics and Applications; 90680G (2013) https://doi.org/10.1117/12.2054369
Event: Eighth International Conference on Thin Film Physics and Applications (TFPA13), 2013, Shanghai, China

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.

Citation Download Citation

Xinfeng He, Congcong Gu, Fei Chen, and Xiaofeng Xu "Vanadium dioxide thin films for smart windows: optical design and performance improvement", Proc. SPIE 9068, Eighth International Conference on Thin Film Physics and Applications, 90680G (16 December 2013); https://doi.org/10.1117/12.2054369

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