This article is cited in 3 papers

Control over the number of local emitting nanodimensional protrusions on the surface of a field emitter

O. L. Golubev^a, V. A. Ivchenko<sup>b

a</sup> Ioffe Institute, St. Petersburg
^b Ural Federal University named after the First President of Russia B. N. Yeltsin, Ekaterinburg

Abstract: A procedure is described that allows the number of emitting nanodimensional protrusions on the surface of a tungsten carbide field emitter to be controlled. According to the proposed approach, a sufficiently large number of nanoprotrusions are grown initially on the emitter surface by means of a thermofield treatment, which usually encounters no difficulties. Then, the applied field strength is decreased in a controlled manner at a certain fixed temperature of the emitter, which allows the number of emitting nanoprotrusions on the surface to be gradually reduced, even to retain a single one.

Received: 10.05.2012

 English version: Technical Physics Letters, 2012, 38:10, 944–946

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