硅、锗材料在Si(100)表面的生长研究

Study of Si and Ge Growth on Si(100) Surface

利用扫描隧道显微镜和超高真空实验装置系统进行了Si(10 0 )表面生长Si,Ge的实验研究。分析了所生成表面的形貌、结构等物理性质。研究表明 :Si在Si(10 0 )表面的同质生长可以形成纳米结构薄膜。Ge在Si(10 0 )表面生长形成规则的三维小岛。而在Si/Ge/Si(10 0 )多层膜上生长则形成大小二种三维岛。

Utilizing scanning tunneling microscope and UHV system, the growth of Si and Ge on Si(100) surface have been investigated. The morphological and structural properties of the surfaces are studies. A nano-patterned Si film can be produced by homoepitaxy on Si(100). The growth of Ge on Si(100) will form regular 3D islands. On the multilayer film of Si/Ge/Si(100), the Ge will form regular small and big is lands. The big islands are probably stabilized by a Ge/Si/Ge shell structure.