Purification of ZnSiP2 and ZnSiAs2 by sublimation in a hermetically sealed system

✍ Scribed by P. Deus; H. Koi; E. Buhrig; U. Voland

• Publisher: John Wiley and Sons
• Year: 1982
• Tongue: English
• Weight: 258 KB
• Volume: 17
• Category: Article
• ISSN: 0232-1300
• DOI: 10.1002/crat.2170170204

✦ Synopsis

Abstract

In many cases the ternary compounds of the type ZnSiC~2~^v^ are produced by gas phase transport or growth from solution. In this way prepared ternary substances contain binary compounds as a rule which are mixed or intergrown with the ternary compound. By sublimation of binary accompanying components in closed ampoules may be purified these ternary compounds. The separation of contaminants is complete and the loss of ternary substance is negligible. The inhibited decomposition of the ternary compounds during sublimation compared with binary compounds is probably caused by formation of an Si surface layer hindering diffusion of the highly‐volatile elements of group II and V to the surface and their sublimation.