Emission Properties of Metal Oxide Nanowiresстатья

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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.

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[1] Emission properties of metal oxide nanowires / V. I. Kleshch, R. Simas, A. G. Nasibulin et al. // Journal of Nanoelectronics and Optoelectronics. — 2012. — Vol. 7. — P. 35–40. The metal oxide nanowires were produced by a resistive heating of various metals under ambient conditions at normal atmospheric pressure. The obtained nanowires of CuO, V2O5, ZnO, Fe2O3 were typically of 1–5 m in length and 10–50 nm in diameter. Field emission properties of the oxidized metal surfaces covered by the nanowires, including current–voltage dependencies and distribution of the emission sites, were measured in a flat diode configuration with the use of a phosphor coated anode. The obtained data on field emission properties were compared with the structural characteristics of the nanowires. The highest efficiency of field emission (with 5 V/m threshold field at 0.01 mA/cm2 current density) was observed for CuO nanowires. Obtained maximal current density (up to 100 mA/cm2 for such kind of cathodes is very promising for various applications in vacuum electronics. [ DOI ]

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