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Controllable synthesis and field emission properties of In2O3 nanostructures
被引:10
作者:
Bai, Dan
[1
]
Zhang, Zhi
[1
]
Li, Lijun
[1
]
Xu, Feng
[1
]
Yu, Ke
[1
]
机构:
[1] E China Normal Univ, Dept Elect Engn, Minist Educ China, Key Lab Polar Mat & Devices, Shanghai 200241, Peoples R China
关键词:
In2O3;
nanostructures;
chemical vapor deposition;
field emission;
PHOTOLUMINESCENCE PROPERTIES;
NANOWIRES;
GROWTH;
SEMICONDUCTOR;
NANOCRYSTALS;
FABRICATION;
SENSORS;
CO;
D O I:
10.1002/crat.200900602
中图分类号:
O7 [晶体学];
学科分类号:
0702 ;
070205 ;
0703 ;
080501 ;
摘要:
Large-scale In2O3 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 In2O3 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 V mu m(-1) and a field enhancement factor of 4597. The room-temperature photoluminescence (PL) spectrum of the In2O3 nanostructure showed UV emission centered at about 396 nm and visible emissions located at 541 and 623 nm. (C) 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
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页码:173 / 177
页数:5
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