Stable field emission from cone-shaped SnO2 nanorod arrays

Uniformly distributed and quasi-aligned cone-shaped SnO2 nanorod arrays have been synthesized by a conventional thermal evaporation approach on a common stainless steel mesh substrates without any catalysts. Field emission (FE) measurements show that its turn-on field is about 2.1 V/mum, which is co...

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Bibliographic Details
Published in:Physica. B, Condensed matter Condensed matter, 2008-10, Vol.403 (19-20), p.3410-3413
Main Authors: MA, L. A, GUO, T. L
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Electron and ion emission by liquids and solids
impact phenomena
Exact sciences and technology
Field emission, ionization, evaporation, and desorption
Physics
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Summary:Uniformly distributed and quasi-aligned cone-shaped SnO2 nanorod arrays have been synthesized by a conventional thermal evaporation approach on a common stainless steel mesh substrates without any catalysts. Field emission (FE) measurements show that its turn-on field is about 2.1 V/mum, which is comparable to that of carbon nanotubes, and the fluctuation of FE currents is as small as 5% for 6 h. The low turn-on field and good stability indicate that it is a promising candidate for FE application.
ISSN:0921-4526
1873-2135
DOI:10.1016/j.physb.2008.04.044