A NEW GREENER SYNTHETIC ROUTE TO CADMIUM/LEAD SELENIDE AND TELLURIDE NANOPARTICLES

摘要

CdSe, CdTe, PbSe and PbTe nanoparticles have been synthesized using a simple, non-organometallic hybrid solution based, high temperature route. The route involves reacting selenium or tellurium powder with sodium borohydride (NaBH_4) to produce selenide or telluride ions; followed by the reaction with a metal salt in a coordinating solvent. The metal source had considerable influence on the final morphology of the particles. The particles were characterised by X-ray diffraction and electron microscopy techniques.