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International Letters of Chemistry, Physics and Astronomy
Volume 61


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Study the Effect of Substrate Temperature on the Optical Properties of CoFe2O4 Films Prepared by Chemical Spray Pyrolysis Method

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Cobalt Ferrite CoFe2O4 thin films have been deposited by chemical spray pyrolysis method (CSP) on glass substrates at different substrate temperatures (300, 350, 400 and 450°C) with an interval of (50°C) using Cobalt Nitrate and Ferric Nitrate as Cobalt and Iron sources respectively, at thickness (400±20) nm. The effect of substrate temperatures change on the optical properties for all prepared films was studied. The optical properties for all the films were studied by recording the transmittance and absorbance spectrum in the range of (300-900) nm. The results showed decreases in transmittance and increases in absorbance with increasing the substrate temperatures. the optical energy gap for allowed direct electronic transition was calculated and it was found that decreases with increasesing the substrate temperatures (2.40-2.22 eV), the Urbach energy increases with increasesing the substrate temperatures and it is values range between (634.6-700.5) meV. The optical constants (absorption coefficient, refractive index, extinction coefficient, real and imaginary parts of dielectric constant and optical conductivity) as a function of photon energy for all prepared films were calculated.


International Letters of Chemistry, Physics and Astronomy (Volume 61)
S. A. Salman et al., "Study the Effect of Substrate Temperature on the Optical Properties of CoFe2O4 Films Prepared by Chemical Spray Pyrolysis Method", International Letters of Chemistry, Physics and Astronomy, Vol. 61, pp. 118-127, 2015
Online since:
Nov 2015

N. Sanpo, C. Wen, C. C. Berndt and J. Wang , Antibacterial properties of spinel ferrite nanoparticles, Faculty of Engineering and Industrial Sciences, Vol. 25, pp. (239-250), (2013).

A. M. Bhavikatti, S. kulkarni, A. Lagashetty, Magnetic and transport properties of cobalt ferrite, International Journal of Electronic Engineering Research, Vol. 2, No. 1, pp. (125-134), (2010).

F. Liu, Y. Lai, J. Liu, B. Wang, S. Kuang, Z. Zhang, J. Li and Y. Liu, 'Characterization of chemical bath deposited CdS thin films at different deposition temperature', Journal of Alloys and Compounds, Vol. 493, No. 1, pp. (305-308), (2010).

S. Affreen, D. Balamurugan and B. G. Jeyaprakash, Thickness dependent physical property of spray deposited ZnFe2O4 thin films, Journal of Applied Sciences, Vol. 12, No. 16, pp. (1636-1640), (2012).

K. L. Chopra. S. Major and D. K. Pandya, Transparent Conductors-Astatus Review, Thin solid film, Vol. 102, pp.1-46, (1983).

Z. H. Khan, N. Salah, S. Habib, A. A. Al-Hamid and S. A. Khan, Optics & Laser Technology, Vol. 44, pp. (6-11), (2012).

M. Taki, Structural and optical properties of Cadmium Tellarde Cdx Te1-x thin film by evaporate technique, International Journal of Application or Innovation in Engineering & Management, Vol. 2, pp. (413-417), (2013).

J. Tauc, Amorphous and Liquid Semiconductors, Plenum, London, (1974).

P. Laokul, S. Arthan, S. Maensiri and E. Swatsitang, Magnetic and optical properties of CoFe2O4 nanoparticles synthesized by reverse micelle microemulsion method, Journal of Superconductivity Novel Magnetism , Vol. 28, No. 8, pp. (2483-2489), (2015).

S. Ilican, M. Caglar, Y. Caglar and F. Yakuphanoglu, CdO: Al films Deposited by sol-gel process: a study on their structural and optical properties, Optoelectronics and advanced materialsRapid communications, Vol. 3, No. 2, pp. (135-113), (2006).

B. A. Ezekoye and C. E. Okeke, Optical properties in PbHgS ternary thin films deposited by solution growth method, Pacific Journal of Science and Technology, Vol. 7, No. 2, pp. (108-113), (2006).

S. W. Xue, X. T. Zu, W. L. Zhou, H. X. Deng, X. Xiang and H. Deng, Effects of post-thermal annealing on the optical constants of ZnO thin film, Journal of Alloys and Compounds, Vol. 448, pp. (21-26), (2008).

A. K. Baker and P. E. Dyer, Refractive-index modification of polymethyl methacrylate (PMMA) thin films by Kraft-laser irradiation, Applied Physics A: Materials Science & Processing, Vol. 57, pp. (543-549), (1993).

S. R. Bhattacharyya, R. N. Gayen, R. Paul and A. K. Pal, Determination of optical constants of thin films from transmittance trace, Thin Solid Films, Vol. 517, No. 18, pp. (5530-5534), (2009).

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