A Simple Model for Evaluation of Electronic Polarizabilities of Chalcopyrity Semiconductors

Abstract

Simple correlations bctwcm the cncrgy gap, optical electronegativity and thc rcfractive index arc givcn for some ternary chalcopyrite scmiconductors. Rcfractive indices and electronic polarizabilities arc cvaliiat,ctl. Rrsults arc iri good agrcemcrit (&5.3%) with the expsrirrierital values, better than those of thc vahics (*19.5-28%) iisirig h o d chargc: rriodcl arid plasma frcquency formalism.

On the study of the optical constants for different compositions of Sn x (GeSe)100−x thin films in terms of the electronic polarizability, electronegativity and bulk modulus

“…In the literature, many models [21][22][23][24] based on the concept of optical electronegativity and other parameters that should be enough to study the main properties of ionic crystals and semiconductors with the use of some numerical constants. Moreover, there are many attempts that have been carried out to correlate the bulk modulus (B) of chalcopyrite and compound semiconductors with other physical parameters such as optical band gap (E g ), refractive index (n) and electronegativity (w) [25].…”

Refractive Index and Electronic Polarizability of Ternary Chalcopyrite Semiconductors

“…where 𝑁 is the number of unit cells per cm 3 and 𝜀 av is the average dielectric constant, i.e., 𝜀 av (ABC 2 ) = (𝜀 AC + 𝜀 BC )/2, 𝜀 AC = 1+( 𝜔 p,AC /𝐸 g,AC ) 2 and 𝜀 BC = 1 + ( 𝜔 p,BC /𝐸 g,BC ) 2 . The relationship of the electronic polarizability 𝛼 with bulk modulus 𝐵, molecular weight 𝑀 and density 𝜎 has been proposed by Reddy et al [34] for binary and ternary semiconductors, [22,34]…”

Plasmon energy, bulk modulus, electronic polarisability of AIBIIIC2 VI and AIIBIVC2 V ternary chalcopyrite semiconductors

“…Chemla [18] and Kumar et al [19] have calculated the electronic polarisability of compounds and chalcopyrite semiconductors. Electronic polarisability of different crystals has been calculated by several authors [20][21][22][23][24] using dielectric theory of Phillips [25][26][27][28][29] and VanVechten [30,31] and bond charge model of Levine. Recently Kumar et al [32] and Reddy et al [21] have suggested semiempirical formula for bulk modulus of these compounds.…”