Chemical trends in oxygen uptake rates at the ordered surfaces of tetrahedrally coordinated compound semiconductors

Abstract

It is observed that oxygen uptake at ordered free surfaces of tetrahedrally coordinated semiconductors decreases with increasing bonding ionicity. This behavior is compared with the dependence of the contact potential at a Schottky barrier on the semiconductor bonding ionicity, and an explanation based on the Mead–Spitzer and Phillips models is suggested.