Shift of Infrared Absorption and Emission Spectra of Transition Metal Ions in Solid Solutions of Semiconductor Compounds

TL;DR

This paper introduces a universal theoretical model explaining the shifts in IR absorption and emission spectra of transition metal ions in semiconductor solid solutions, aiding in predicting spectral behavior with varying concentrations.

Contribution

The paper presents a new theoretical model that generalizes the spectral shift phenomenon to multicomponent semiconductor solid solutions.

Findings

Model successfully estimates long-wavelength shifts in luminescence bands.

Application to ZnMgSe(Cr2+) and CdMnTe(Fe2+) crystals demonstrates practical utility.

Generalization to multicomponent systems broadens understanding of spectral shifts.

Abstract

A universal theoretical model is proposed that explains the observed shift of IR absorption and emission bands in the spectra of transition metal ions in solid solutions of semiconductor compounds. The model has been used for estimating the long-wavelength shift of luminescence bands in the spectra of semiconductor solid solutions with increasing concentration in application to crystals of the ternary systems ZnMgSe(Cr2+) and CdMnTe(Fe2+). Description of the phenomenon is generalized to the case of multicomponent solid solutions.