Electronic structure of solid solutions of argentum halide and heterojunctions based on them

The electronic structure and optical functions of solid solutions of AgCl _1−x Br _x and AgBr _1−x I _x and graded heterojunctions based on them are investigated within the framework of the theory of functional local density by the pseudopotential method in a basic set of numerical sp³d⁵ pseudo-orbitals. The band structure parameters and their dependence on x are determined, and the widths of the valence and forbidden band are shown to vary in a nonlinear fashion. A model of heterocontacts of argentum halide is proposed, and the directions of charge carrier transfer are identified.__________Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 11, pp. 10–14, November 2004.