Title :
Improved field emission characteristics of individual carbon nanotube coated with boron nitride nanofilm
Author :
Dong Hoon Shin ; Seung Il Jung ; Hae Young Choi ; Jong Uk Kim ; Cheol Jin Lee
Author_Institution :
Korea Univ., Seoul
Abstract :
In summary, the SWCNT and DWCNT point emitters were fabricated by attaching CNT bundles onto the AFM tip using a dielectrophoresis method. We could find that the SWCNT point emitter indicated the better field emission performance compared with the DWCNT point emitter. We expect that the probe type CNT based point emitter can be used in the various applications such as x-ray sources and microwave amplifier tubes which require large emission current density.
Keywords :
atomic force microscopy; carbon nanotubes; electrophoresis; field emission; AFM tip; DWCNT point emitters; SWCNT point emitters; dielectrophoresis method; double-walled carbon nanotube point emitters; emission current density; field emission characteristics; probe type carbon nanotube point emitter; single-walled carbon nanotube point emitters; Anodes; Bonding; Boron; Carbon nanotubes; Coatings; Electron beams; Electron emission; Electron sources; Needles; Tunneling;
Conference_Titel :
Vacuum Nanoelectronics Conference, 2007. IVNC. IEEE 20th International
Conference_Location :
Chicago, IL
Print_ISBN :
978-1-4244-1133-7
Electronic_ISBN :
978-1-4244-1134-4
DOI :
10.1109/IVNC.2007.4480955
