Veuillez utiliser cette adresse pour citer ce document : http://hdl.handle.net/123456789/7353
Titre: AB-INITIO CALCULATIONS OF THE DIELECTRIC CONSTANT, OPTICAL ABSORPTION AND THE REFRACTIVE INDEX OF Zn1-xBexO ALLOY
Auteur(s): SAID LAKEL
FATIMA ELHAMRA
M. IBRIR
K. ALMI
Mots-clés: Optical Properties, refractive index, PP-PW, DFT.
Date de publication: 3-mar-2016
Résumé: 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 Zn 1-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.
URI/URL: http://dspace.univ-biskra.dz:8080/jspui/handle/123456789/7353
Collection(s) :Publications Nationales

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