Tight-binding description of the silicon carbide nanotubes

摘要: Abstract The electronic and optical properties of silicon carbide nanotubes (SiCNTs) have been investigated using tight binding calculations based on previous density functional theory (DFT) studies. spectra SiCNTs are dependent the diameter chirality their energy gap (E g ) reduction shows dependence radius electric field. E decreases linearly with field until reaches zero semiconductor metallic transition occurs. Based band strength, explained in terms an explicit relation.