Effect of Sn Addition on Physical Properties of Se-te Glassy Semiconductors

Abstract

The effect of tin (Sn) addition on physical properties i.e. coordination number, lone pair of electrons, no of constraints, bond energy, heat of atomization, glass transition temperature, mean bond energy, cohesive energy, density, molar volume, electro-negativity and optical band gap of Se92Te8-xSnx (x = 0, 1, 2, 3, 4, 5) glassy alloy is investigated. It is inferred that on increasing Sn content, average coordination number, average number of constraints, average heat of atomization, density, optical band gap, mean bond energy and glass transition temperature increases but lone pair of electrons, molar volume and deviation of stoichiometry (R) decreases.