期刊
MATERIALS LETTERS
卷 63, 期 2, 页码 295-297出版社
ELSEVIER
DOI: 10.1016/j.matlet.2008.10.016
关键词
Tin oxide; Nanoneedles; Crystal growth; Field emission
资金
- National High Technology Research and Development Program for Advanced Materials of China [2005AA303G10]
- Science Foundation of Fujian province [A0420001]
Large-scale novel needle-shaped SnO2 nanostructures were produced via a thermal evaporation method and their possible growth mechanism is proposed. The products, which gradually become thinner to form a sharp tip, had preferred < 110 > growth directions. Efficient and stable field emission is obtained from these SnO2 nanostructures. The current density is up to 3 mA/cm(2) at 5.93 V/mu m and the fluctuation of FE (field emission) currents is as small as 8% over 2 h. Our results imply that needle-shaped SnO2 nanostructures are promising candidate for FE displays. (c) 2008 Elsevier B.V. All rights reserved.
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