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Research of the field emission of fractal blades patterns of large length

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4 Author(s)
Gulyaev, Yu.V. ; Dept. of Saratov, Inst. of Radio Eng. & Electron. of RAS, Saratov, Russia ; Koro, V.N. ; Grigorev, Y.A. ; Rehen, G.A.

The looking up of effective, cost-effective (cold) sources of intensive beam couplings is one of actual problems of modern vacuum micro- and nanoelectronics. As far as it is known, the difficulties of deriving of large absolute values of a current of field emission are connected to extremely small values of the effective area of emission component, which forms 10-6 to 10-8 part from the area of a cathodic substrate. One of methods of increasing of the effective area of emission is the transferring from regular bivariate tips of gratings to surface patterns blade or planar-end configuration with extended fractal boundaries. Apparently, that substantial surface micro- and nanostructure from this or that fraction can be referred to natural fractals. As it was shown, field emission properties of close set film and monolithic carbon patterns on conductive substrates can be essentially improved by a simple vacuum discharge converting 2D pattern with mean values of a period 65-70 nm, altitude 7-8 nm, and radius of curvature of tops 2-3 nm, in discontinuous branching.

Published in:

Vacuum Electron Sources Conference, 2004. Proceedings. IVESC 2004. The 5th International

Date of Conference:

6-10 Sept. 2004