Title :
Single walled nanotube fiber cathode emission property modification and evaluation
Author :
Lockwood, Nathaniel P. ; Tang, Wilkin ; Fairchild, Steven B.
Author_Institution :
Directed Energy Directorate, Air Force Res. Lab., Kirtland AFB, MN, USA
Abstract :
High direct currents of 2.0 mAmps for a 15 micron diameter single walled nanotube (SWNT) fiber were achieved. Highly aligned, dense SWNT morphology in the fiber was demonstrated to reduce threshold emission and improve resilience to Joule heating. SWNT fibers were exposed to ion bombardment and the effects on emission were evaluated.
Keywords :
cathodes; nanofibres; nanotubes; Joule heating; SWNT fibers; current 2 mA; direct currents; highly aligned dense SWNT morphology; ion bombardment; single walled nanotube fiber cathode emission property modification; size 15 micron; threshold emission; Carbon nanotubes; Cathodes; Morphology; Optical fiber amplifiers; Optical fiber communication; Optical fiber devices; Optical fiber testing; CNT; SWNT; SWNT fiber; carbon nanotubes; cathodes; field emission; single walled nanotube;
Conference_Titel :
Vacuum Electronics Conference (IVEC), 2012 IEEE Thirteenth International
Conference_Location :
Monterey, CA
Print_ISBN :
978-1-4673-0188-6
Electronic_ISBN :
978-1-4673-0187-9
DOI :
10.1109/IVEC.2012.6262276
