Optical and structural characteristics of Bridgman grown cubic Zn1-xMnxTe alloys

Effects of Selenium Doping in Zinc Telluride from First Principles

“…The native point defect behavior of ZnTe has been the subject of numerous investigations over the past 60 years, all with differing methodologies, but with almost universal agreement that the zinc vacancy plays a dominant role and somewhat less universal agreement about what other types of point defects are present, with reports of tellurium vacancies, cation interstitials, and antisites all coming from various authors. − For radiation detector and solar cell applications, however, the identity, characteristics, and concentrations of these other defects are critical as information on the zinc vacancy alone is insufficient to fully understand the range of trapping centers that will be present. Additionally, many authors have reported extreme difficulty in the production of n-type ZnTe. ,− ,,− This is a trend that has continued from the very first investigations of the material until now and is so much an issue that when ZnTe is made n-type, it is often a significant result itself. ,, Finally, with recent interest in multicomponent II–VI alloys, many containing selenium, such as Cd (1– x ) Zn x Te (1– y ) Se y , Cd (1– x ) [V|Fe|Mn] x Te, Cd (1– x ) Zn x Te (1– y ) Mn y , and Mn (1– x ) Zn x Te (1– y ) Se y , it has become especially important to understand how alloy constituents behave throughout the composition space; data on this, especially in the dilute limit, is severely lacking. ,− …”