SOLID-STATE RECRYSTALLIZATION OF II-VI SEMICONDUCTORS - APPLICATION TO CADMIUM TELLURIDE, CADMIUM SELENIDE AND ZINC SELENIDE

Solid state recrystallization (SSR) has been very rarely used for semi conductors. It has nevertheless been proposed, and industrially used, for the single crystal growth of cadmium mercury telluride according t o a quench-anneal process. The reasons of the interest of this process , in specific cases of II-VI semiconductors crystal growth, will be an alyzed (particular phase diagrams, phase transitions in the solid stat e close to the melting point, high temperature contaminations.. etc.. make the use of traditional melt growth techniques unfavourable) and i llustrated refering to CdHgTe literature. Original results related to the binary compounds CdTe, CdSe and ZnSe will be presented.