Abstract
In 2O 3 nanowires with diameters of 10–100 nm were fabricated through direct hydrogen reduction In 2O 3 powder and Ag nanoparticles as catalyst. The results of high-resolution transmission electron microscopy and X-ray diffraction indicated that the nanowire was single-crystalline with body-centered cubic structure. Based on the fact that a small Ag nanoparticle attached to one end of some nanowires, a growth model of the In 2O 3 nanowires is proposed. A strong and broad blue-green emission band centered at 465 nm was observed in the photoluminescence spectrum of the In 2O 3 nanowires, which could be ascribed to the existence of a large amount of oxygen vacancies.
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