γ-Irradiation preparation of cadmium selenide nano-particles in ethylenediamine system

Cadmium Selenide nano-particles have been successfully prepared by γ-irradiation in ethylenediamine (en) system, using selenium powders and cadmium chloride as reactants. Ethylenediamine is selected as the solvent for two reasons: Firstly, it is a polar substance as strong as water, in which system solventional electron can be easily produced during γ-irradiation; Secondly, it can form complexs with many substances to increase their solubility (in en). The experiments showed that the phase and the particle size of CdSe would change with the increase of the radiation dose.