Title :
Effect of Cathode Geometry on the Field Emission Properties of Individual Carbon Nanotube Emitters
Author :
Niemann, Darrell L. ; Ribaya, Bryan P. ; Gunther, Norman ; Rahman, Mahmudur ; Leung, Joseph ; Nguyen, Cattien V.
Author_Institution :
Santa Clara Univ., Santa Clara
Abstract :
The effects of shape and the surface area of cathode support structure on the field emission properties of carbon nanotube cathodes are investigated and quantified in this paper. This study demonstrates that the overall structural geometry, specifically the area of the cathode support structure, plays a significant role and should be considered in the design rules for optimization of electron source for advanced electron microscopy.
Keywords :
carbon nanotubes; cathodes; electron field emission; electron microscopy; nanotube devices; advanced electron microscopy design; carbon nanotube cathodes; carbon nanotube emitters; cathode structural geometry; cathode support structure; electron source optimization; field emission properties; Carbon nanotubes; Cathodes; Computer simulation; Electron emission; Electron microscopy; Etching; Geometry; Nickel; Numerical analysis; Scanning electron microscopy;
Conference_Titel :
Vacuum Electronics Conference, 2007. IVEC '07. IEEE International
Conference_Location :
Kitakyushu
Print_ISBN :
1-4244-0633-1
DOI :
10.1109/IVELEC.2007.4283284
