Single-crystalline tellurium(Te) Nanotubes have been synthesized through a chemical vapor deposition(CVD) technique using Bi_2Te_3 as the starting material,and the formation process of the products involves decomposition of starting material,transport and condensation of vaporized growth species.Scanning electron microscopy(SEM),transmission electron microscopy(TEM),high resolution transmission electron microscopy(HRTEM),selected area electron diffraction(SAED) and energy disperse spectroscopy(EDS) were emp...