Preparation and properties of copper indium diselenide CuInSe2

Polycrystalline alloys in the Cu-In-Se ternary system of specified compositions are synthesized using an original silica apparatus designed by the authors and the temperature-time conditions also specially chosen for this synthesis. The region of existence of CuInSe^sub 2^-based solid solutions in the Cu-In-Se system, the temperature of the polymorphic transformation of the CuInSe^sub 2^ compound from the chalcopyrite modification into the sphalerite modification, and the melting temperature of the sphalerite modification are determined experimentally.[PUBLICATION ABSTRACT]