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Optical Parameters of Nano metric SnO2 Thin Films Deposited via Sol-Gel Spin Coating Technique

International Research Journal on Advanced Science Hub, 2021, Volume 3, Issue Special Issue 6S, Pages 11-16
10.47392/irjash.2021.158

Abstract

Thin films of tin oxides were successfully synthesized by using Tin(II)chloride dihydrate and ethanol as precursors. This paper discuss about the optical parameters of the thin films of tin oxide post annealed at 2000C. UV- Vis spectroscopy study reveals that the prepared tin oxide thin film shows high transparency (87.5%) and low absorbance and low reflectance in the region of visible spectrum. The band gap of the tin oxide thin film was obtained as 3.59 eV. The average value of refractive index of  the thin films of tin oxide was 1.909. The real and imaginary values of dielectric constants were 7.1 ans 0.33 respectively.
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