Synthesis and X‐ray powder diffraction studies of semiconducting alloys in the system AgCd_2‐xZn_xGaS₄

Abstract

X‐ray powder technique was used in the investigation of AgCd2GaS4–'AgZn2GaS4' section to determine the region of AgCd2GaS4‐based solubility. It was established that the solid solution forms up to 75 mol.% 'AgZn2GaS4'. The refinement of AgCd0.5Zn1.5GaS4 structure was performed. This alloy crystallizes in orthorhombic structure (space group Pmn21 ) with unit cell parameters a =0.78772(2), b =0.67221(2), c =0.64019(2) nm, V =0.33899(3) nm3. (© 2005 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

X-ray powder diffraction study of semiconducting alloys Ag1−xCuxCd2GaS4 and AgCd2Ga1−xInxS4

“…the existence of the quaternary compound AgCd 2 GaSe 4 (space group Pmn2 1 ; a = 0.84049 nm, b = 0.71934 nm, c = 0.68434 nm) [5]. A Cd → Zn substitution also leads to significant solid-state solubility that reaches 75 mol% 'AgZn 2 GaS 4 ' at 870 K [6]. The substantial limits of solid solubility in both sections permits control for the position of photoconductivity maximum in a wide range of the electromagnetic spectrum (∼500-800 nm) [4,7].…”

First and second harmonic generation of the optical susceptibilities for the non-centro-symmetric orthorhombic AgCd2GaS4

“…In several studies the formation of wide solid solution ranges of AgCd 2 GaS 4 has been found by substitutions in cation or anion sub-lattices. This crystal may be considered as a parent of a wide family of structure-related 'mixed' crystals where the properties can be tuned through the chemical composition variation [5][6][7][8][9]. The combination of non-centrosymmetric structure and wide transmittance range makes AgCd 2 GaS 4 a promising material for infra red (IR) nonlinear optical applications.…”

Electronic band structure of AgCd2GaS4: theory and experiment

“…In several studies the formation of wide solid solution ranges of AgCd 2 GaS 4 has been found by substitutions in cation or anion sub-lattices. This crystal may be considered as a parent of a wide family of structure-related 'mixed' crystals where the properties can be tuned through the variation of chemical composition [5][6][7][8][9]. The coexistence of a noncentrosymmetric structure and a wide transmittance range suggests that AgCd 2 GaS 4 is a promising material for infrared (IR) nonlinear optical applications.…”