Structural and Electrical Characterization of Ag3Ga5Te9 and Ag3In5Se9 Crystals

Abstract

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Effect of ordered defects on the crystal structure of In-rich ternary compounds of the Cu–In–Se system

“…Analysis of the registered peak positions of the XRD patterns of Cu 3 In 5 Se 9 and Cu 5 In 9 Se 16 produced as a unique solution a tetragonal unit cell corresponding to a chalcopyrite-related structure. It is worth mentioning that the diffraction data of Cu 3 In 5 Se 9 give a tetragonal structure in this analysis, differing from the orthorhombic structure reported by Parlak et al [18]. The refined unit cell parameters, a and c, and the volume, V , of the tetragonal unit cell obtained from the analysis of powder XRD data of CuIn 5 Se 8 , CuIn 3 Se 5 , Cu 2 In 4 Se 7 , Cu 5 In 9 Se 16 and Cu 3 In 5 Se 9 are given in table 1.…”