“…Polycrystalline ingots of about 1 g were prepared by the usual melt and anneal technique, lowering the temperature from 1500 to 850 K at a rate of 20 K/h, keeping this temperature for 30 days, and finally cooling to room temperature at a rate of 10 K/h. Previous experience indicates that this procedure [2,4,28]; (CuGaSe 2 )(ZnSe) [3,28], (CuGaTe 2 )(ZnTe) [8,28]; (CuInS 2 )(ZnS) [2,4,28,47]; (CuInSe 2 )(HgSe) [28,29,35]; (CuInSe 2 )(ZnSe) [3,9,28,34]; (CuInTe 2 )(ZnTe) [23,28,36,46]; (CuInTe 2 )(CdTe) [28,41]; (CuInTe 2 )(HgTe) [28,30]; (AgInSe 2 )(HgSe) [28,31]; (AgInTe 2 )(HgTe) [11,13,28]; (AgInTe 2 )(CdTe) [1,5,12,18,24,30,31,42];…”