Abstract
To synthesize Bi2Te3 nanotubes with a one-dimensional structure, Te nanowires were prepared as templates via a solvothermal method. Subsequently, on the basis of atomic diffusion, Te was alloyed with Bi obtained by liquid-phase reduction in Bi3+. A hollow structure was formed as a result of a difference in the diffusion rates between the two atoms. Microstructural features of Te nanowires such as a particle morphology, crystal density, and aspect ratio, were determined by the synthetic temperature, and had a great influence on the alloying between Bi and Te into Bi2Te3 nanotubes. In addition, alloying was affected by the diffusion rate of Te atoms and the concentration of the agent for reducing Bi3+ to Bi.
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