硅纳米管的研究进展

Research Development of Silicon Nanotubes

元素硅是sp^3杂化，而不是易于形成石墨管状结构的sp^2杂化，所以具有这种sp^3杂化键的物质难于形成中空一维硅纳米材料，即硅纳米管。综述了硅纳米管及性能的理论研究，同时论述了采用模板法合成硅纳米管的最新实验进展情况，指出了目前硅纳米管的研究中需要解决的一些问题，并展望了发展。

The synthesis of hollow one dimensional silicon nanomaterials, silicon nanotubes （ SiNTs ）, is difficult owing to sp^3 hybridization in silicon other than sp^2 hybridization which is easy to form graphite tubular structures. The recent researchs on the properties of hypothetical SiNTs are reviewed in detail. At the same time, the latest experimental development for the synthesis of SiNTs using the template method by chemical vapor deposition （ CVD ） is also introduced. Some problems on the research of SiNTs which need to be resolved in the present are presented and the development direction is discussed in the paper.