CVT growth of zirconium sulphoselenide single crystals

Large single crystals of a few important members (x=0, 1, 2) of the series ZrS _x Se_2−x compounds have been obtained by chemical vapour (iodine) transport method. The crystals have been characterized for several properties. Their semiconducting nature is inferred from resistivity vs temperature measurements, their optical absorption data reveal indirect gap transitions, their thermoscans indicate their stability over a limited temperature range, and they essentially grow by the mechanism of two dimensional layer propagation.