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Controllable synthesis and field emission properties of In2O3 nanostructures

✍ Scribed by Dan Bai; Zhi Zhang; Lijun Li; Feng Xu; Ke Yu

Publisher
John Wiley and Sons
Year
2010
Tongue
English
Weight
244 KB
Volume
45
Category
Article
ISSN
0232-1300

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✦ Synopsis

Large-scale In 2 O 3 nanorods, nanocubes and nanowires have been successfully synthesized by chemical vapor deposition route under atmospheric pressure. The structures and morphologies were characterized by x-ray diffraction (XRD), scanning election microscopy (SEM) and high-resolution transmission electron microscopy (HRTEM). The growth mechanisms of these In 2 O 3 nanostructures were analyzed in detail based on the experimental results. Field-emission measurements of these nanostructures demonstrated that nanorods with rectangular cross-section possessed good performance with a turn-on field of 2.47 VΒ΅m -1 and a field enhancement factor of 4597. The room-temperature photoluminescence (PL) spectrum of the In 2 O 3 nanostructure showed UV emission centered at about 396 nm and visible emissions located at 541 and 623 nm.

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