Improved Photoresist Coating for Making CNT Field Emitters

An improved photoresist-coating technique has been developed for use in the fabrication of carbon-nanotube- (CNT)- based field emitters of the type described in “Fabrication of Improved Carbon- Nanotube Field Emitters” (NPO-44996), NASA Tech Briefs, Vol. 32, No. 4 (April 2008), page 50. The improved photoresist- coating technique overcomes what, heretofore, has been a major difficulty in the fabrication process. This technique is expected to contribute to the realization of high-efficiency field emitters (cold cathodes) for diverse systems and devices that could include gas-ionization systems, klystrons, flat-panel display devices, cathode-ray tubes, scanning electron microscopes, and x-ray tubes.