Effect of Gamma Irradiation on the Optical Properties of Mg Doped CdO Thin Films Deposited by Spray Pyrolysis

Abstract

Thin films of CdO and 9% Mg doped CdO doped have been prepared using spray pyrolysis technique. Transmission and absorption spectra were recorded in order to estimate these films. The deposited thin films were exposed to γ - rays. We have studied the transmission, absorptions and absorption coefficient as a function of photon energy before and after irradiation. The optical constants such as: reflectance, extinction coefficient, refractive index, real and imaginary parts of the dielectric constant and the electrical conductivity were calculated also.

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“…Converting equation this one gets: 2.303 log ( ) = αt …………………………………….……………………..………………………………. (12) The absorbance (A), then is defined as logarithm (base 10) of the reciprocal of transmittance T; A= -log (T) =log (1/T), Then α =2.303 ( ) ………………………………..….………………………….…………..…...…….…………. (13).…”

“…Some recent studies [10][11][12][13][14][15][16][17][18] showed the effects of irradiation on the optical and structural CdO thin films properties.…”

Effect of Mg Molar Concentration on Structural and Optical Properties of CdO Thin Films Prepared by Chemical Bath Deposition Method

“…Another is thermal evaporation technique where the thin films were turned into impure by magnesium [10]. In addition, the effect of gamma rays on the properties of CdO thin films tinged with Mg by thermal chemical spray technology was studied [11]. The spry pyrolysis technique was used to prepare cadmium oxide thin films doped with Mg and study the effect of Annealing Temperature on the Electronic Transitions [12].…”