Single-Crystalline In2O3 Nanotubes Filled with In



Single-crystalline In2O3 nanotubes with cubic structure were synthesized via a physical vapor depostion process. The nanotubes grew along the 〈111〉 direction and were continuously filled with metallic In (see Figure). Photoluminescence measurement results displayed strong orange emission. Indium-filled In2O3 nanotubes represent an exciting system and offer great potential for application in electronic devices or “nanothermometers”.