INFLUENCE OF MOLARITY ON PHYSICAL PROPERTIES OF SPRAY PYROLYSED TRANSPARENT CONDUCTING Cdo THIN FILMS

Transparent highly conducting CdO thin films were coated on glass substrates by homemade Chemical Spray Pyrolysis technique (CSPT). The X-ray diffraction studies were carried out the CdO films was found to be cubic poly crystalline structure with preferential reflection of (111) plane. The crystalli...

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Bibliographic Details
Published in:ARPN journal of engineering and applied sciences 2015-04, Vol.10 (6), p.2453-2459
Main Authors: Saravanan, V, Prince, J Joseph, Anusuya, M
Format: Article
Language:English
Subjects:
Concentration (composition)
Conduction
Crystallites
Diffraction
Glass
Nanostructure
Photons
Thin films
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Summary:Transparent highly conducting CdO thin films were coated on glass substrates by homemade Chemical Spray Pyrolysis technique (CSPT). The X-ray diffraction studies were carried out the CdO films was found to be cubic poly crystalline structure with preferential reflection of (111) plane. The crystallite size was determined by Scherer formula and is in the range of 6-23 nm. The SEM analysis indicated the film prepared at higher molarity with two different magnification exhibited porous nature of the surface and nano clusters are interconnected to form a nanorod of CdO. From UV-VIS-NIR studies, the absorption coefficient was found and connected with the photon energy in order to value the direct band gap energy (2.17 eV-1.99 eV). Depending on the molarity, Hall measurement showed the electrical resistivity and mobility at 300K varied in the range 16.5 x10 super(-3) [Omega]cm to 1.23 x 10 super(-) [Omega]cm and 11.7 cm super(2)/Vs to 34.2 cnr/Vs.
ISSN:1819-6608
1819-6608