Title :
3.5: Fabrication and field emission properties of point-type emitters of carbon nanotubes for miniaturized X-ray sources
Author :
Lee, Hansung ; Choi, Jusung ; Lee, Chungyeol ; Goak, Jeungchoon ; Lee, Naesung
Author_Institution :
Fac. of Nanotechnol. & Adv. Mater. Eng., Sejong Univ., Seoul, South Korea
Abstract :
We developed a simple process to fabricate point-type CNT emitters by repeatedly coating CNT films with controlled nanotube morphologies and strong adhesion. The CNT emitters produced significantly large field emission current densities at very low electric fields and excellent long-term stability for high current emission. The fabrication processes and characteristics of the CNT electron sources for high-resolution miniaturized X-ray tubes will be presented in detail.
Keywords :
carbon nanotubes; field emission; carbon nanotubes; field emission properties; high current emission; high-resolution miniaturized X-ray tubes; long-term stability; miniaturized X-ray sources; point-type emitters; Carbon nanotubes; Current density; Electric fields; Electron tubes; Films; Moon; Voltage measurement; CNT film; Carbon nanotube; field emission; miniaturized X-ray tubes;
Conference_Titel :
Vacuum Nanoelectronics Conference (IVNC), 2010 23rd International
Conference_Location :
Palo Alto, CA
Print_ISBN :
978-1-4244-7889-7
Electronic_ISBN :
978-1-4244-7888-0
DOI :
10.1109/IVNC.2010.5563219
