Phase diagram for the quasi-binary thallium(I) selenide–bismuth(III) telluride system

Abstract

Abstract The phase diagram for the quasi-binary Tl2Se–Bi2Te3 system has been established based on the results of phase studies by differential thermal analysis (DTA) and X-ray diffraction (XRD). The diagram for the title system presented in this paper has been compared with that previously published by other authors. As a result of the research, a significant correction of the former phase diagram was made, because it was found that the components of the studied system formed three new chemical compounds. Obtained phase diagram has been compared with other thallium(I)–bismuth(III) chalcogenide systems.

Keywords

• Thallium(I) selenide
• Bismuth(III) telluride
• Quasi-binary chalcogenide system
• Phase studies