Monday, September 12, 2011

US Patent 8011990 - Improving emission of CNT electron emitters

This patent from E.I. du Pont teaches a way to improve the emission properties of of carbon nanotube pastes used as field emitters in flat panel displays. Claim 1 reads:

1. A method for improving the emission current of a field emitter device that comprises an electron field emitter comprising carbon nanotubes on a surface, comprising

applying a liquid material to the surface;

heating the liquid material to form a material having adhesive contact with the surface; and

separating the adhesive material from the surface.