Journal
VACUUM
Volume 83, Issue 11, Pages 1340-1343Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.vacuum.2009.04.036
Keywords
Tin oxide nanorods; Crystal growth; Field emission
Funding
- National Natural Science Foundation of China [50730008]
- Shanghai Science and Technology [0752nm015]
- National Basic Research Program of China [2006CB300406]
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Aligned tin dioxide (SnO2) nanorods have been synthesized by high-frequency inductive heating. Nanorods were grown on silicon substrates vertically in less than 3 min, using SnO2 and graphite as the source powder. Scanning electron microscopy and transmission electron microscopy showed nanorod with diameters from 25 to 50 nm. The turn-on field needed to produce a current density of 10 mu A/cm(2) is found to be 1.6 V/mu m. This type of SnO2 nanorods can be applied as field emitters in displays as well as vacuum electric devices. (C) 2009 Published by Elsevier Ltd.
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