Indium oxide nanospirals made of kinked nanowires

摘要

Helical inorganic nanostructures have received great attention due to their unique structures that could be interesting for both fundamental research and nanodevice applications. Using a tube-in-tube laser ablation chemical vapor deposition (CVD) method with gold nanoparticles as the catalysts, we reported the synthesis of self-assembled kinked In_2O_3 nanospirals and multikinked nanowires. As-synthesized nanostructures showed ultrafast photoinduced reversible wettability switching behavior from hydrophobic (132.7°) to superhydrophilic (0°) within 14 min. Single kinked In _2O_3 nanostructure-based field-effect transistors were fabricated, and mobilities higher than 200 cm~2/(V·s) were obtained, revealing good opportunity in fabricating high-performance electronic and optoelectronic devices.