Growth of ZnS nano-crystallites in gel and their characterization

The conditions for the gel growth of ZnS were studied in this paper. The controlled reaction between the CH3CSNH2 and Zn(NO3)·6H2O solutions by the diffusion process in a metasilicate gel was used for growing ZnS crystals. The nano-crystallites formed in the gel have been examined by electron microscopy. The following results were obtained: (1) the resulting particles with a size of 5 nm were identified to be zinc-blende ZnS particles and (2) the luminescence property of the crystals was studied by means of cathode luminescence spectroscopy.