Synthesis and characteristics of ZnSe one-dimension nanocrystals

In three novel solvents, triethylamine, diethylarnine, and triethanolamine, ZnSe nanocrystal is prepared at 170°C by the modified solvothermal method in which potassium borohydride, a reducing reagent, is used. XRD and TEM results indicate that the final products are ZnSe one-dimension nanocrystals. The UV-VIS absorption spectra and thermostability of the samples are investigated. The results indicated that the morphological characteristics of the products were contributed to the various conditions, such as solvents, temperature and reducing reagent. At ambient temperature, ZnSe lD nanocrystal has a good thermostability. ZnO nanocrystal can formed at above 400°C from ZnSe lD nanocrystals with O₂ in air. A conception of the transition state complex is proposed to understand successively the growth process of ZnSe lD nanocrystal.