Importance

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Abstract

The invention relates to a method for producing a field emission layer (3), preferably for luminescent screen applications, according to which in order to improve the serviceable life and long-time stability, a mixture consisting of a polymer (11) and carbon nanofibers (4), which are hardened in a low-oxygen, in particular, oxygen-free atmosphere at temperatures greater than 2000.degree. C., particularly greater than 2500.degree. C., preferably, approximately 3000.degree. C., are applied to a cathode electrode (8) assigned to a cathode (1), and the cathode electrode (8), together with the carbon nanofibers (4)/polymer (11) mixture is heated to a temperature ranging from 300.degree. C. to 500.degree. C., preferably from 380.degree. C. to 480.degree. C., in particular, from 420.degree. C. to 450.degree. C. in an atmosphere at least containing oxygen, e.g. air, a consequence of the oxygen results in a pyrolysis and/or to a hardening of the polymeric base (7), and at least a portion of the carbon nanofibers (4) is exposed over at least a portion of the spatial extension of the carbon nanofibers (4), particularly at least over a portion of the length of the carbon nanofibers (4), in particular, at least over half the length.

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First Claim