Electronic polarizability and optical basicity properties of oxide glasses through average electronegativity

• Published in: Journal of non-crystalline solids Vol. 286; no. 3; pp. 169 - 180
• Main Authors: Reddy, R.R., Nazeer Ahammed, Y., Abdul Azeem, P., Rama Gopal, K., Rao, T.V.R.
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 01.07.2001; Elsevier
• Subjects: Condensed matter: electronic structure, electrical, magnetic, and optical properties; Exact sciences and technology; Optical constants (including refractive index, complex dielectric constant, absorption, reflection and transmission coefficients, emissivity); Optical constants: refractive index, complex dielectric constant, absorption, reflection and transmission coefficients, emissivity; Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation; Optical properties of bulk materials and thin films; Physics; O110; P280; Germanate glasses; Polarizability; Glass; Oxides; Titanates; Electronegativity; Phosphate glass; Experimental study; Tellurites; Borate glasses; Energy gap; Optical properties; Alkalinity
• ISSN: 0022-3093; 1873-4812
• DOI: 10.1016/S0022-3093(01)00481-1

The average electronic oxide polarizability ( α o 2−) and optical basicity ( Λ) of numerous simple oxides have been estimated on the basis of different properties of oxides: average electronegativity ( χ av) and energy gap ( E g). The estimated values are in good agreement with the literature values. Similarly the optical basicity and average electronic polarizability of binary oxides glasses (phosphate, borate, silicate, germanate, tellurite and titanate) have been evaluated on the basis of average electronegativity ( χ av) only. The performance of the present method is compared with Dimitrov and Komatsu relationships. A good agreement is observed between the computed and literature values.