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International Journal of Scientific and Engineering Research
ISSN Online 2229-5518
ISSN Print: 2229-5518 10    
Website: http://www.ijser.org
scirp IJSER >> Volume 2, Issue 10, October 2011 Edition
The Influence of Dopants (Cd AND Al ) on The Physical Properties of ZnO
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Author(s)
Ali Fatima.A, Suganthi Devadason
KEYWORDS
ABSTRACT
Zinc oxide and doped (Cadmium,Aluminium) zinc oxide thin films have been deposited on glass substrates by simple sol-gel spin coating technique. The structure of the deposited ZnO films was determined by powder X-ray diffraction (XRD) and it exhibits wurtzite structure along c-axis orientation. The surface morphology of the undoped and doped ZnO thin films has been examined by SEM. The optical absorbance of the deposited films was recorded using UV-Vis-NIR spectrometry. The optical band gap of deposited films was found to be 3.13 eV for pure ZnO, 3.21 eV and 3.22 eV for 1% cadmium (Cd) and 1% Aluminium (Al) doped ZnO respectively. The photoluminescence spectra of the films show prominent peaks between 382 to 385nm.
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