State diagram and monocrystal growth of solid solutions of AgGaS2-AgInS2 system

Results are presented upon studying the state diagram and growing of AgGaS2, AgInS2 monocrystals and associated solid solutions. The AgInS2 ternary compound, at its hardening from 800 deg C down to room temperature, has been prepared in the form of an orthorhombic modification with the lattice parameters 1 = 7.002 +- 0.05, b = 8.275 +- 0.005, c = 6.699 +- 0.05 A. Lattice parameters variation has been studied depending on a solid solution composition in the AgGaS2-AgInS2 system. The state diagram is characterized by a very narrow crystallization interval. The solidus and liquidus curves are shown to concave downwards. The process and conditions of crystallization are described