Effect of Aqueous Solution Molarity on Structural and Optical Properties of Ni sub( 0.92)Co sub( 0.08)O Thin Films Prepared by Chemical Spray Pyrolysis Method

In this study, Ni0.92Co0.08O thin films with different molarities (0.05M, 0.1 M, 0.15M and 0.2 M) have been successfully deposited on glass substrates by chemical spray pyrolysis (CSP) technique at substrate temperature and thickness of about 300 nm. The structural and optical properties of these fi...

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Bibliographic Details
Published in:International Journal of Thin Films Science and Technology 2015-05, Vol.4 (2), p.111-111
Main Authors: Bakr, Nabeel A, Khodair, Ziad T, Shano, Ahmed M
Format: Article
Language:English
Subjects:
Absorbance
Atomic force microscopy
Concentration (composition)
Crystallites
Electronics
Mathematical analysis
Optical properties
Spray pyrolysis
Thin films
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Summary:In this study, Ni0.92Co0.08O thin films with different molarities (0.05M, 0.1 M, 0.15M and 0.2 M) have been successfully deposited on glass substrates by chemical spray pyrolysis (CSP) technique at substrate temperature and thickness of about 300 nm. The structural and optical properties of these films have been studied using XRD, AFM, and UV-Visible spectroscopy. The XRD results showed that all films are polycrystalline in nature with cubic structure and preferred orientation along (111) plane. The crystallite size was calculated using Scherrer formula and it is found that the 0.2M has maximum crystallite size (49.51nm). AFM results showed homogenous and smooth thin films. The absorbance and transmittance spectra have been recorded in the wavelength range of (300-900) nm in order to study the optical properties. The optical energy gap for allowed direct electronic transition was calculated using Tauc equation and First derivative of absorbance with respect to energy of photon.
ISSN:2090-9519
2090-9527