EFFECT OF ZINC AND SELENIUM CONCENTRATION ON THE FORMATION OF ZnSe NANOPARTICLES SYNTHESIZED BY WET CHEMICAL ROUTE

Abstract

Monodispersed zinc selenide (ZnSe) nanoparticles were synthesized via wet chemical route. Zinc chloride (ZnCl₂) and sodium hydrogen selenide (NaHSe) were used as the source materials to synthesize ZnSe nanoparticles. Briefly, ZnCl₂ and NaHSe solution were prepared at same concentration of 50 mM and mixed together to obtain stoichiometric composition ZnSe. Polyvinyl alcohol (PVA) was added to the mixed solution as a stabilizer. In order to investigate effect of Zn to Se ratio on the formation of ZnSe nanoparticles, the concentration of ZnCl₂ were varied higher than stoichiometric composition. Results show that the increasing of zinc to selenium ion ratio tend to decrease the ZnSe nanoparticle size.