CuCl sub(2) assisted cubic to hexagonal phase transformation of cadmium sulphide

IT appears that the phase transformation in case of CdS depends on the starting material and method of treatment. In phase transformation process, XRD peak heights corresponding to: (1 1 1), (2 0 0), (2 2 0) (belonging to cubic phase) and (0 0 2), (1 0 1) and (1 0 3) (belonging to hexagonal phase) are changing. Percentage of hexagonal content (H) in CdS go on increasing with an increase in concentration of CdCl sub(2) or CuCl sub(2) (% by weight of CdS) into CdS and phase transformation perhaps could be attributed to the incorporation of Cl super(-) ions in CdS matrix in the process of doping. Lattice constants are observed to be sensitively affected by doping.