TELLURIUM CRYSTAL GROWTH.

摘要

Techniques employed for the preparation of single crystal tellurium by the slow-cooling,vapor,Bridgman,and Czochralski methods are described;the last method is emphasized. The Czochralski method has provided large (17mm diameter by 70mm long) single crystal boules,and lends itself to the addition of dopants during crystal growth. The ready cleavage parallel to the c axis evidenced by tellurium crystals requires the use of special techniques for fabrication of samples for optical and electrical evaluation. (Author)