SiC–SiO2–C Coaxial Nanocables and Chains of Carbon Nanotube–SiC Heterojunctions

Coaxial nanocables composed of a uniform single‐crystalline β‐SiC core, an amorphous SiO2 intermediate layer, and a graphitic carbon sheath (see Figure) have been synthesized via a simple chemical vapor deposition route. By annealing the nanocables, chains of carbon nanotube–SiC heterojunctions have been prepared. These nanostructures are suggested to be highly valuable as building blocks for nanoscale electronic devices.