Fabrication and characterization of TiO2/SiO2 multilayers using sol-gel spin coating method
https://doi.org/10.17586/2220-8054-2019-10-1-63-69
Abstract
The TiO2/SiO2 alternating multilayers of one-dimensional photonic crystals (1DPCs) was fabricated by the sol-gel process and a spin coating method. This study investigated the possibility of creating a better solar cell back reflector by introducing maximum and broader reflection towards longer wavelength spectral region with effect of optimal thin films. After the fabrication of 1DPCs, the optical properties were investigated by Raman spectroscopy, Fourier infrared spectroscopy (FTIR), UV-visible spectroscopy (UV-vis) and scanning electron microscopy (SEM). From the results, the Raman spectra exhibited notable peaks and indicates the presence of anatase TiO2 and SiO2 layered structures. Furthermore, the highest reflectance was observed in the visible region and shifting into the longer wavelength spectral region due to the increment of alternative layers (stacks). These structural and morphological results are encouraging for the realization of TiO2 and SiO2 materials for various applications, including LED and photovoltaics.
About the Authors
S. Saravanan
Department of Nanotechnology, Swarnandhra College of Engineering and Technology
India
India
Seetharampuram, Narsapur-534280, (A.P)
R. S. Dubey
Department of Nanotechnology, Swarnandhra College of Engineering and Technology
India
India
Seetharampuram, Narsapur-534280, (A.P)
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Review
For citations:
Saravanan S., Dubey R.S. Fabrication and characterization of TiO2/SiO2 multilayers using sol-gel spin coating method. Nanosystems: Physics, Chemistry, Mathematics. 2019;10(1):63-69. https://doi.org/10.17586/2220-8054-2019-10-1-63-69
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