OJMetal  Vol.3 No.2 B , August 2013
The Effect of ZnO Thin Film and Its Structural and Optical Properties Prepared by Sol-Gel Spin Coating Method
ABSTRACT
ZnO thin films were deposited on glass substrates at different Zinc concentration and their effects on structural, Morphology and optical properties were investigated. Zinc acetate dehydrate, 2 Methoxy ethanol and Monoethanolamine were used as the precursor, solvent and stabilizer respectively. The molar ratio of Monoethanolamine to Zinc acetate was maintained as 1. The crystal structure and orientation of the films were analyzed by XRD. The XRD patterns show that the ZnO films are polycrystalline with wurtzite hexagonal structure. The film with 0.5 m/l concentration has the better crystallinity. The thickness of the films was determined by thickness Profilometer. The surface morphology of the films was observed by Scanning electron microscope. The SEM images show that they are homogeneous, continuous and spindle like shape. The optical properties of the films were studied by UV-Vis-Spectrophotometer. The transmittance of the films decreases with increase of Zinc concentration. The energy band gap of the films decreases slightly, when the Zinc concentration increases from0.25 m/l to0.75 m/l and then increases when the concentration further increases from0.75 m/l to1.0 m/l.

Cite this paper
N. Nagayasamy, S. Gandhimathination and V. Veerasamy, "The Effect of ZnO Thin Film and Its Structural and Optical Properties Prepared by Sol-Gel Spin Coating Method," Open Journal of Metal, Vol. 3 No. 2, 2013, pp. 8-11. doi: 10.4236/ojmetal.2013.32A2002.
References
[1]   H. Czternastek, “ZnO Thin Films Prepared by High Pressure Magnetron Sputtering,” Optoelectronics Review, Vol. 12, No. 1, 2004, pp. 49-52.

[2]   C. Gumu, O. M. Ozkendir, H. Kavak and Y. Ufuktepe, “Structural and Optical Properties of Zinc Oxide Thin Films Prepared by Spray Pyrolysis Method,” Journal of Optoelectronicics and Advanced Materials, Vol. 8, No. 1, 2006, pp. 299-303.

[3]   A. Og. Dikovska, P. A. Atanasov, C. Vasileva, I. G. Dimitrov and T. R. Stovanchov, “Thin ZnO Films Produced by Pulsed Laser Deposition,” Journal of Optoelectronics and Advanced Materials, Vol. 7, No. 30, 2005, pp. 1329-1334.

[4]   D. C. Agarwal, R. S. Chanhan, Amit Kumar, D. Kabiraj, F. Singh, et al., “Synthesis and Charectarization of ZnO Thin Film Grown by Electron Beam Evoporation,” Journal of Applied Physics, Vol. 99, No. 12, 2007, pp. 11-14.

[5]   A. Singh, A. Kumar, N. Suri, S. Kumar, M. Kumar, P. K. Khanna and D. Kumar, “Structural and optical Charectarization of ZnO Thin Films Deposited by Sol-Gel Method,” Journal of Optoelectronics and Advanced Materials, Vol. 11, No. 6, 2009, pp. 790-793.

[6]   A. Y. Liu, J. Q. Zhang and Q. H. Wang, “Structural and Optical Properties of ZnO Thin Films Prepared by Different Sol-Gel Process,” Chemical Engineering Communications, Vol. 198, No. 4, 2011, pp. 494-503.

[7]   H. X. Li, J. Y. Wang, H. Liu, C. H. yang, H. Y. Xu, X. Li and H. M. Cui, “Sol-Gel Preparation of Transparent Zinc Oxide Films with Highly Preferential Crystal Orientation,” Vaccum, Vol. 77, No. 1, 2004, pp. 57-62.

[8]   S. Ilican, Y. Caglar and M. Cagler, “Preparation and Characterization of ZnO Thin Films Deposited by Sol-Gel Method,” Journal of Optoelectronics and Advanced Materials, Vol. 10, No. 10, 2008, pp. 2578-2583.

[9]   Z. R. Khan, M. Khan, M. Zulfquar and M. S. Khan, “Optical and Structural Properties of ZnO Thin Films Fabricated by Sol-Gel Method,” Material Sciences and Applications, Vol. 2, 2011, pp. 340-345.

[10]   Z. R. Khan, M. Zulfequar and M. S. Khan, “Optical and Structural Properties of Thermally Evaporated Cadmium Sulphide Thin Films on Silicon (1 0 0) Wafers,” Materials Science and Engineering: B, Vol. 174, No. 1-3, 2010, pp. 145-149. doi:10.1016/j.mseb.2010.03.006

[11]   M. Caglar, S. Ilican and Y. Caglar, “Influence of Dopant Concentration on the Optical Properties of ZnO: In Films by Sol-Gel Method,” Thin Solid Films, Vol. 517, No. 17, 2009, pp. 5023-5028. doi:10.1016/j.tsf.2009.03.037

 
 
Top