Journal
APPLIED PHYSICS LETTERS
Volume 85, Issue 4, Pages 636-638Publisher
AMER INST PHYSICS
DOI: 10.1063/1.1773613
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Stable field emission is realized from well-separated tetrapod-like ZnO nanostructures with high purity. The ZnO nanostructures are painted on a highly doped silicon substrate covered by a Au layer with a thickness of 300 nm. An emission current density of 18 mA/cm(2) is obtained and degradation was not observed over a three day period. The fluctuations of the emission current are less than 2%. These experimental results indicate that tetrapod-like ZnO nanostructures are promising materials as cold cathodes for mass production. (C) 2004 American Institute of Physics.
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