Author/Authors :
Tafreshi، M. J. نويسنده Physics Department, Faculty of Science, Semnan University, Semnan, Iran. , , Dibaie، B. نويسنده Physics Department, Faculty of Science, Semnan University, Semnan, Iran. , , Fazli، M. نويسنده ,
Abstract :
A thermodynamic model was used to find out the optimum temperature for the growth of ZnS single crystals
in closed ampoules by chemical vapor transport technique. Based on this model 1002 °C was found to be optimum
temperature for 2 mg/cm3 concentration of transporting agent (iodine). ZnS Crystals were grown in optimum (1002
°C) and non-optimum (902 °C and 1102 °C) temperatures. The composition structure and microstructure of the grown
crystals were studied by Atomic absorption spectroscopy, X-ray diffraction and Scanning electron microscopy
measurements. Properties of the grown crystals were correlated to the growth conditions especially a stability in mass
transport along the closed tube length.
