Title:
Growth and field-emission property of tungsten oxide nanotip arrays

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Zhou, Jun
Gong, Li
Deng, Shao Zhi
Chen, Jun
She, Jun Cong
Xu, Ning Sheng
Yang, Rusen
Wang, Z. L. (Zhong Lin)
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Abstract
Large-area, quasialigned nanotips of tungsten oxide have been grown by a two-step high-temperature, catalyst-free, physical evaporation deposition process. The tungsten oxide nanotips are single crystalline with growth direction of [010]. The tungsten oxide nanotips exhibit excellent field-emission properties with a low threshold field (for an emission current density of 10 mA/cm²) ~4.37 MV/m and uniform emission from the entire arrays, as well as high time stability. These results make tungsten oxide nanotip arrays a competitive candidate for field-emission displays.
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2005-11-21
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