七十年代以来,非晶态材料与无序固体系统的研究成为固体物理领域中最活跃的前沿之一,特别是对于非晶态四面体配位半导体的研究进展很快.通过实验,可以测量出各种非晶态四面体配位半导体的DOS谱,其结果说明了晶态与非晶态电子态密度之间存在着较大差别. Since the 1970s, the research on amorphous materials and disordered solid systems has become one of the most active frontiers in the field of solid state physics, especially for the research on amorphous tetrahedral coordinated semiconductors.From the experiment, we can measure A variety of amorphous tetrahedral coordination semiconductor DOS spectrum, the results show that there is a big difference between the density of amorphous and amorphous electronic states.