Preparation and characterization of telluride nanoparticles

Telluride nanoparticles were prepared by inert-gas condensation.The crystal structure,morphologies and particle size distribution of the sample were characterized by X-ray diffraction(XRD),transmission electron microscopy(TEM),and laser particle analyzer.The results indicate that the prepared nanoparticles of four kinds have uniform size,high purity,narrow size distribution and spherical shape.As the working pressure is from 30 to 5kPa at constant electric current of 50A,the average diameters of the nanoparticles of Te and Bi decrease from 200nm to 20-80nm.