Exciton Spectroscopic Control of disordered Semiconductor Systems Properties

摘要

The II-VI semiconductor solid solutions formed by binary compounds which have different crystal structures (wurtzite-W, zinc-blende -ZB and crystals with stacking faults -SF) have been investigated. Study of exciton reflection and luminescence spectra and birefringence measurements along with X-ray analysis and microprobe control have revealed for Zn_(x)Cd_(1-x) Se and Zn_(1-x) Mg_(x) S solid solutions the concentration range of the ZB-W structural phase transition. The dependence of band parameters on composition has been studied in a wide range of component concentrations covering both ZB and W pure structures, as well as the ZB-W transition region.