COLD CATHODES MADE OF CARBON MATERIALS

Title:

COLD CATHODES MADE OF CARBON MATERIALS

Document Type and Number:

WIPO Patent Application WO/2005/006378

Kind Code:

A1

Abstract:

The invention relates to electronic engineering, in particular to producing autoemission cathodes which are used in the form of an electrode source for different-purpose electrovacuum devices. The use of different materials for producing cold cathodes is one of investigation directions with respect of the use of different materials, including a hydrocarbon material based on a linear-chaining sp¹-carbon. Said hydrocarbon material can be embodied in the form of carbon fibres or carbon film based on a linear-chaining sp¹-carbon, including films produced by applying a carbon-powder suspension to a substrate. Said substrate can be made of a flexible material. In addition, the cathode can be made of a carbon film obtainable by the deposition thereof from carbon plasma. The inventive method for producing carbon fibres consists in carrying out the reaction of dehydrohalogenation of polymeric fibres from polyvinylidene-halogenides or polyvinyl-halogenides associated with successive heat treatment at a temperature ranging from 400 to 900 °C in vacuum in the order of 10⁴Pa. The use of the inventive cold cathodes makes it possible to produce electronic devices and light sources.

Inventors:

GUSEVA MALVINA BORISOVNA (RU)
BABAEV VLADIMIR GEORGIEVICH (RU)
NOVIKOV NIKOLAY DMITRIEVICH (RU)
SAVCHENKO NATALYA FEDOROVNA (RU)
KHVOSTOV VALERIY VLADIMIROVICH (RU)
FLOOD PATRICK O (IE)

Application Number:

PCT/RU2003/000303

Publication Date:

January 20, 2005

Filing Date:

July 11, 2003

Export Citation:

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Assignee:

TETRANOVA LTD (IE)
GUSEVA MALVINA BORISOVNA (RU)
BABAEV VLADIMIR GEORGIEVICH (RU)
NOVIKOV NIKOLAY DMITRIEVICH (RU)
SAVCHENKO NATALYA FEDOROVNA (RU)
KHVOSTOV VALERIY VLADIMIROVICH (RU)
FLOOD PATRICK O (IE)

International Classes:

H01J1/30; H01J9/02; H01J63/02; (IPC1-7): H01J1/30; H01J9/12; H01J19/24

Foreign References:

RU94011577A	1995-12-10
RU2194328C2	2002-12-10
RU2159972C1	2000-11-27
EP1291889A2	2003-03-12

Other References: