Microstructure and thermal properties of amorphous As₂S₃-CdI₂ system

The homogeneous glass samples for the (1-x)As₂S₃-xCdI₂ (x=0.015, 0.035, 0.050) system were prepared by conventional melt-quenched method. X-ray diffraction, thermal comprehensive analysis and Raman scattering measurement on amorphous (1-x) As₂S₃-xCdI₂ alloys were carried out. The glass transition temperature decreases a bit with the addition of Cdl₂. Based on the experimental data, the microstructure was considered to be that the discrete molecule species of Asl₃ and Cd-S atomic bonds or clusters are homogeneously dispersed in a disordered polymer network formed by AsS₃ pyramids interconnected by sulfur bridges.