Optical and Electrical Properties of Nanocrystalline SnO2 Thin Films Synthesized by Chemical Bath Deposition Method
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Date
2015-10
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Publisher
Scientific Research
Abstract
The chemical bath deposition (CBD) technique was used for the synthesis of the tin oxide (SnO2)
thin films. X-ray diffraction (XRD) was employed to find the crystallite size by using Debye Scherrer’s
formula. The surface morphology of SnO2 films was analyzed by the scanning electron microscopic
(SEM) studies. The FT-IR spectrum exhibits the strong presence of SnO2. The optical properties
of the SnO2 thin films were determined using UV-Visible spectrum. The dielectric studies
were carried out at different frequencies and at different temperatures for the prepared SnO2 thin
films. Further, electronic properties, such as valence electron plasma energy, average energy gap or
Penn gap, Fermi energy and electronic polarizability of the SnO2 thin films, were determined. The
ac conductivity of the SnO2 thin films increases with increase in temperature and frequency. The
activation energy was determined by using dc electrical conductivity measurement. The Hall
properties were also calculated.
Description
Keywords
SnO2, CBD, XRD, SEM, FTIR, Dielectric Studies
Citation
Soft Nanoscience Letters, 2015, 5, 55-64