CHEMICAL-DEPOSITION OF ZINC HYDROXOSULFIDE THIN-FILMS FROM ZINC(II) -AMMONIA-THIOUREA SOLUTIONS

The growth of ZnS films from ammonia solutions using thiourea as a sul fur precursor has been investigated, In situ growth kinetic studies ha ve been performed by means of the quartz crystal microbalance (QCM) te chnique. The experiments have been carried out in pH buffered conditio ns (pH approximate to 11) and the effect of the addition of amines has been investigated. The film are characterized by various techniques ( Optical, Rutherford Back Scattering, Transmission Electron Microscopy) , The composition of zinc hydroxosulfide is ranging between almost pur e ZnS to mainly Zn(OH)(2) depending on the deposition conditions.