Recent Patents on Nanotechnology

Author(s): Raghunandan Seelaboyina and Wonbong Choi

DOI: 10.2174/187221007782360439

Recent Progress of Carbon Nanotube Field Emitters and Their Application

Page: [238 - 244] Pages: 7

  • * (Excluding Mailing and Handling)

Abstract

The potential of utilizing carbon nanotube field emission properties is an attractive feature for future vacuum electronic devices including: high power microwave, miniature x-ray, backlight for liquid crystal displays and flat panel displays. Their high emission current, nano scale geometry, chemical inertness and low threshold voltage for emission are attractive features for the field emission applications. In this paper we review the recent developments of carbon nanotube field emitters and their device applications. We also discuss the latest results on field emission current amplification achieved with an electron multiplier microchannel plate, and emission performance of multistage field emitter based on oxide nanowire operated in poor vacuum.

Keywords: Carbon nanotubes, field emission, field emitters, vacuum microelectronics, nanowires, miniature x-ray, field emission display, microchannel plate, microwave, emission uniformity