Vanadium Dioxide Thin Films for Smart Windows: Numerical Study and Improvement of Their Optical Properties

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Vanadium Dioxide Thin Films for Smart Windows: Numerical Study and Improvement of Their Optical Properties

March 18, 2021 Physical Science 0

Because of the reversible semiconductor-to-metal transition near room temperature, both monoclinic (M) and rutile (R) phase vanadium dioxide (VO2) has attracted considerable attention as a promising candidate for smart windows in recent years. This paper presents a numerical simulation of the optical properties of VO2 thin films, such as index of refraction, coefficient of extinction, reflectance, and transmittance. To do so, we used the Drude-Lorentz Model to measure coefficients at from the optical parameters n and k by determining the dielectric constant ɛ (w, T). Given that VO2 has a semiconductor-metal transition temperature of 68°C, we used transmittance simulations to investigate the effect of thickness on the optical properties of VO2 thin films. As a result, a major change in the optical properties of VO2 thin films has been discovered, which opens up a slew of new possibilities, especially for smart windows.

Author (s) Details

I. Derkaoui
University Sidi Mohammed Ben Abdellah, Faculty of Sciences Dhar el Mahraz, Laboratory of Solid state Physics, Group of Nanomaterials and Renewable Energies, P.O.Box 1796 Atlas Fez 30 000, Morocco and Africa Graphene Center, 2 Boekenhout Street, Florida, Johannesburg, 1709, South Africa.

M. Benkhali
University Sidi Mohammed Ben Abdellah, Faculty of Sciences Dhar el Mahraz, Laboratory of Solid state Physics, Group of Nanomaterials and Renewable Energies, P.O.Box 1796 Atlas Fez 30 000, Morocco.

Professor M. Khenfouch
Africa Graphene Center, 2 Boekenhout Street, Florida, Johannesburg, 1709, South Africa.

A. Rezzouk
University Sidi Mohammed Ben Abdellah, Faculty of Sciences Dhar el Mahraz, Laboratory of Solid state Physics, Group of Nanomaterials and Renewable Energies, P.O.Box 1796 Atlas Fez 30 000, Morocco.

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