METHOD OF PRODUCTION OF HIGH-PURITY COPPER DISELENIDE AND INDIUM CuInSe Russian patent published in 2006 - IPC C30B29/46 C01B19/00 

FIELD: methods of synthesis of copper diselenide and indium CulnSe₂; electronic engineering; production of solar cells for conversion of solar energy possessing low optical losses and high efficiency.

SUBSTANCE: proposed method of production of CulnSe₂ includes loading the charge into reaction chamber, evacuation, sealing and heating. Used as charge is CulnSe_x at 4≤x≤8; heating is continued to T_max=1000°C till complete decomposition into crystalline CulnSe₂ and vitreous Se and setting of it in cold end of chamber whose temperature is maintained at T_min≤25°C. Proposed method makes it possible to produce high-purity CulnSe₂ at content of admixtures ≤1·10^-4 mass-%. CulnSe₂ may be obtained in form of thin films, powder-like and monolithic.

EFFECT: facilitated procedure; low cost; enhanced ecological safety.

1 dwg