Title :
Field emission properties from double walled carbon nanotubes produced by a catalytic CVD
Author :
Lee, T.J. ; Choi, S.K. ; Seo, S.H. ; Lee, S.H. ; Jung, S.I. ; Lee, C.J.
Author_Institution :
Dept. of Nanotechnology, Han Yang Univ., Seoul, South Korea
Abstract :
High quality DWNTs (double-walled carbon nanotubes) was produced by a catalytic CVD. The field emission was measured using parallel-plate geometry with a gap distance of 270 ∼ 370 μm under a 2 × 10-7 Torr. The turn-on electric field of DWNTs was about 1.7 ∼ 3.5 V/μm at ∼ 1.0 × 10-7 mA/cm2 and the current density of DWNTs was about ∼ 20mA/cm2 at the applied electric field of ∼ 8V/μm. The lifetime indicated good stability for 20 hours when constant DC voltage applied at high current density of ∼ 1.0 × 10-3 A/cm2.
Keywords :
carbon nanotubes; chemical vapour deposition; current density; field emission; nanotechnology; 20 hour; 270 to 370 micron; 2E-7 torr; C; DWNT lifetime; catalytic CVD; current density; double walled carbon nanotubes; field emission properties; gap distance; parallel-plate geometry; turn-on electric field; Carbon nanotubes; Current density; Flat panel displays; Optical microscopy; Rapid thermal annealing; Scanning electron microscopy; Spraying; Stability; Stimulated emission; Voltage;
Conference_Titel :
Vacuum Nanoelectronics Conference, 2004. IVNC 2004. Technical Digest of the 17th International
Print_ISBN :
0-7803-8397-4
DOI :
10.1109/IVNC.2004.1354898
