Phase equilibria in the quasi-ternary system Ag2S–CdS–Ga2S3

Crystal structure of the phases Hg5CIII2X8 (CIII=Ga, In; X=Se, Te)

“…This class of compounds was currently discovered in the investigation of a series of sections ZnS-In 2 S 3 [1], ZnSe-In 2 Se 3 [2], CdS-Ga 2 S 3 [3], CdS-In 2 S 3 [4], HgSe-Ga 2 Se 3 [5], HgSe-In 2 Se 3 [6], HgTe-Ga 2 Te 3 [7], HgTe-In 2 Te 3 [8]. The majority of such compounds (Zn 5 In 2 S 8 , Zn 5 In 2 Se 8 , Cd 5 Ga 2 S 8 and Cd 5 In 2 S 8 ) exist in a limited temperature range, and their existence can only be established by DTA investigation of the phase diagrams of the sections B II X-C III 2 X 3 .…”

Solid–liquid equilibria in the quasi-ternary system CdS–Ga2S3–GeS2

“…The binary systems CdS-Ga 2 S 3 , CdS-GeS 2 and Ga 2 S 3 -GeS 2 that bound the quasi-ternary system CdS-Ga 2 S 3 -GeS 2 have been described in detail [22][23][24][25][26][27][28][29][30][31][32][33][34]. Earlier, we have studied the CdGa 2 S 4 -GeS 2 system [35].…”

“…The phase equilibria in the CdS-Ga 2 S 3 system were re-investigated in [26], and a generalized phase diagram was constructed. The interactions in the system lead to the formation of three intermediate phases of which CdGa 2 S 4 is the most stable one that melts congruently at 1251 K. The other two phases are unstable.…”

“…The CdGa 2 S 4 homogeneity region ranges from 47 to 50 mol% Ga 2 S 3 being shifted to the CdS side. CdGa 2 S 4 crystallizes in the defective chalcopyrite structure (I4) with the unit cell parameters a = 0.5536, c = 1.016 nm [26].…”

Phase equilibria in the quasi-ternary system Cu2Se–CdSe–In2Se3

“…For instance, in the CuGaSe 2 -CdSe and CuInSe 2 -CdSe systems the CuCd 2 GaSe 4 and CuCd 2 InSe 4 compounds occur, respectively, which melt incongruently (l + ␥(CdSe) ⇔ CuCd 2 GaSe 4 (CuCd 2 InSe 4 )), form a homogeneity region and crystallize in the sphalerite structure [1][2][3]. In the AgGaS 2 -CdS system, the compound AgCd 2 GaS 4 forms; it melts incongruently (l + ␥(CdSe) ⇔ AgCd 2 GaS 4 ), has a homogeneity region, and crystallizes in an orthorhombic structure (space group Pmn2 1 ) [4].…”