In this book, undoped and some transition metal ions doped ZnS semiconducting nanomaterials were synthesized by microwave-assisted solvothermal method. To prepare the undoped ZnS nanoparticles, zinc acetate and thiourea were used as the precursor materials and ethylene glycol was used as the solvent. The solvothermal method used in this present work is an effective method for preparing metal sulfides under mild conditions, which is a simple, cheaper and convenient method. ZnS materials doped with transition metal ions were also synthesized by the same method. In the present work, ZnS material was doped with manganese, copper, cobalt and indium in four different concentrations. The microwave treated precursor materials, after washing with de-ionised water and acetone and after annealing leads to fine nanocrystalline powder.
Dr. S. Rinu Sam has completed his Masters and Master of Philosophy from one of the well-known university, Madras University, India. He has secured his Ph.D. from Manonmaniam Sundaranar University, India.