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Vol. 36 No. 4 (2024): Vol 36 Issue 4, 2024

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Sol-Gel Spin Coated Transparent Single-TiO2 and SiO2 Thin Film on Glass for Opto-electronic Applications

https://doi.org/10.14233/ajchem.2024.30616
Saravanan Sigamani
Department of Physics (S&H), Swarnandhra College of Engineering & Technology (A), Seetharampuram, Narsapur-534280, India
https://orcid.org/0000-0003-3639-6214
M.V. Someswararao
Department of Engineering Physics, S.R.K.R. Engineering College, Bhimavaram-534204, India
https://orcid.org/0000-0003-4365-1412
V. Swaminatham
Department of Physics (S&H), Swarnandhra College of Engineering & Technology (A), Seetharampuram, Narsapur-534280, India
https://orcid.org/0009-0009-8515-2188

Corresponding Author(s) : Saravanan Sigamani

shasa86@gmail.com

Asian Journal of Chemistry, Vol. 36 No. 4 (2024): Vol 36 Issue 4, 2024

Abstract

Great attention has been given on the sol-gel synthesis and spin-coating deposition techniques for the fabrication of various thin films. Because of its simple technique to fabricate dielectric (metal oxide) films using tetraethyl orthosilicate and titanium isopropoxide precursors. In this work, transparent single layer of SiO2 and TiO2 thin film was deposited on a glass substrate and characterized by  FTIR, UV-visible spectroscopy, fluorescence and scanning electron microscopy techniques. The single layer thin film was mechanically  stable and strong by adhering to glass substrates. The FTIR transmittance spectrum evidenced the existence of Si-O-Si and Ti-O-Ti at  ~1100 and 1400 cm-1. The UV-visible absorbance spectra of single layer of SiO2 and TiO2 thin films showed strong absorption at below  00 nm. The excitation wavelength at 380 nm, the fluorescence spectra of both thin films showed the highest emission spectrum  in between 733-798 nm. The SEM studies confirmed the smooth surface in both SiO2 and TiO2 layers. Further, it could be useful for  various applications such as back reflector in solar cells, anti-reflection coatings, hydrophobic and anti-fogging materials. 

Keywords

Sol-gel Thin film Anatase Fluorescence SiO2 TiO2
Sigamani , S., Someswararao , M., & Swaminatham, V. (2024). Sol-Gel Spin Coated Transparent Single-TiO2 and SiO2 Thin Film on Glass for Opto-electronic Applications. Asian Journal of Chemistry, 36(4), 885–888. https://doi.org/10.14233/ajchem.2024.30616
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