Investigation of optical properties of cadmium sulfide (CdS) thin films by chemical bath deposition.
Main Article Content
Abstract
Thin films of CdS were deposited on glass substrates using a chemical bath deposition technique from aqueous solutions of Cadmium sulfate (CdS) and thiouria. The films grown from the bath are uniform and adherent, have a high transmittance in the visible region. The CdS films properties studied include optical transmission, optical constant, dielectric constant, optical conductivity, and band gaps. The films in this study produced fairly high transmission (> 86% between 500 and 900). Band gaps of (2.4 eV) for direct transition were obtained. Such films could be used as photocells and other photoconductive devices, thin film transistors and diodes, piezoelectric ultrasonic transducers and amplifiers, piezoelectric acoustic resonators and electron beam-pumped lasers.
Article Details
This work is licensed under a Creative Commons Attribution 4.0 International License.
How to Cite
References
Ortega M., Santana G., and Acevedo A.M., Superficies Vacio, 1999,9: 294 – 295.
S.A. Tomas, S. Stolik, V. Altuzar, and O. Zelaya, Review of Scientific Instrumnts, 74 (1): 2003, 569 – 571.
F.I. Ezema and P.E. Ugwuoke, The Pacific Journal of Science and Technology, 5 (1): 2003, 33 – 38.
S.M. Sze, 1981, "Physics of Semiconductor Devices", Second edition, Jon Wiley and Sons, New York, PP392-395
S. Dimitrijev, "Understanding Semiconductor Devices", Oxford University Press, 2000, PP182.
D.D.O.Eya, A.J.Ekpunobi, and C.E.Okeke, 2005, ”The pacific journal of science and technology” ,6(1): 16-22.
M.G. Jimenez, G. Martinez, J.L. Martinez, E. Gomez, and A. Zehe, J. Electrochem. Soc., 131 (12): 1984, 2974 – 2977.
G. Hodes, 2003, "Chemical solution deposition of semiconductor films", Marcel Dekker, PP418-420.
Lopez M.B.O., M.S. Lerma, A.M. Galvan, and R.R. Bon, 2004, Thin Solid Films, 457, 278 – 284.
Cullity B.D. and tock S.R. S, 2001, "Elements of X – Ray Diffraction", Third edition, Prentice-Hall in USA, PP75-78.