ABSTRACT
This chapter explains the possible structures, optoelectronic properties, and application of Silicon Nanotubes (SiNTs) in lithium-ion batteries (LIBs). It explains the fabrication methods of SiNTs and the challenges. The dependence of electronic properties of SiNTs on their structure has been investigated. According to the tight-binding model, SiNTs follow Hamada's rule and these results are different to ab initio results. Theoretical studies based on the tight-binding model show SiNTs have conductor and semiconductor behaviours according to Hamada's rule. The chapter considers some changes in the electronic properties of SiNTs when applying the curvature effect or a magnetic field. The changes in electronic properties cause changes in optical properties such as optical absorption spectrum of nanotubes. Experimental evidences show that the fabrication of SiNTs is more difficult and more expensive than other kinds of silicon nanoparticles. Nowadays scientists are working on the fabrication methods to solve the challenges in this field.
