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Controllable synthesis and field emission properties of In 2 O 3 nanostructures
Author(s) -
Bai Dan,
Zhang Zhi,
Li Lijun,
Xu Feng,
Yu Ke
Publication year - 2010
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.200900602
Subject(s) - nanorod , field electron emission , photoluminescence , high resolution transmission electron microscopy , nanostructure , nanowire , transmission electron microscopy , materials science , chemical vapor deposition , nanotechnology , chemical bath deposition , scanning electron microscope , field emission microscopy , diffraction , deposition (geology) , optoelectronics , optics , thin film , electron , physics , composite material , paleontology , quantum mechanics , sediment , biology
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 Vμm –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. (© 2010 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)