Author/Authors
LAKEL, SAID University of LAGHOUAT - Laboratory of physical materials, Algeria , LAKEL, SAID University of Biskra - Laboratory of Metallic and Semiconducting Materials, Algeria , ELHAMRA, FATIMA University of Biskra - Laboratory of Metallic and Semiconducting Materials, Algeria , IBRIR, M. University of Msila - Laboratory of Physics of Materials and its Applications, Algeria , ALMI, K. University of LAGHOUAT - Laboratory of physical materials, Algeria
Title Of Article
AB-INITIO CALCULATIONS OF THE DIELECTRIC CONSTANT, OPTICAL ABSORPTION AND THE REFRACTIVE INDEX OF ZN_1-X BE_X O ALLOY
شماره ركورد
21687
Abstract
The optical properties of Zn1-xBexO were studied by first principle method using the density functional theory. The dielectric function and optical constants are calculated using PP-PW method within the generalized gradient approximation (GGA). The theoretical calculated optical properties yield a static dielectric constant for Zn1-xBexO are 4.08, 3.86, 3.60, 3.12 and 2.85 along polarization direction (001). It indicates that the static dielectric constants reduce with increasing Be concentration. However a static refractive indices for Zn1-xBexO are found to be 2.05, 1.98, 1.88, 1.77 and 1.70 with the increasing x, respectively. The obtained results agree well with the available theoretical and experimental values.
From Page
129
NaturalLanguageKeyword
Optical Properties , refractive index , PP , PW , DFT
JournalTitle
Courrier Du Savoir
To Page
132
JournalTitle
Courrier Du Savoir
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