Polyol-mediated preparation of disklike (ZnSe)_2·EN precursor and its conversion to ZnSe crystals with quasi-network structure

摘要

In this paper, we reported the rapid synthesis of disklike (ZnSe)_2·EN precursor via a simple and convenient polyol method. Annealing the precursor in argon stream at 500℃ resulted in the formation of ZnSe crystals with unique quasi-network structure. The obtained samples were characterized by powder x-ray diffraction, field-emission scanning electron microscopy, transmission electron microscopy, infrared absorbance spectra, and thermogravimetric analysis. The influence of PEG200 on the final products in the system was also discussed.