TY - JOUR
T1 - Electron emission from individual nitrogen-doped multi-walled carbon nanotubes
AU - Doytcheva, Maya
AU - Kaiser, Monja
AU - Verheijen, Marcel A.
AU - Reyes-Reyes, Marisol
AU - Terrones, Mauricio
AU - De Jonge, Niels
PY - 2004/9/21
Y1 - 2004/9/21
N2 - This report describes the measurements on individual nitrogen-doped multi-walled carbon nanotubes mounted on tungsten support tips. Both the current-voltage characteristics and the energy spectrum of the emitted electron beam revealed field emission behavior similar to that shown for the best metallic emitters. The experimental results correspond with numerical calculations based on electron microscopy images of the nanotubes. The work function was derived and amounted to 5.0 eV. Finally, it is shown that the emission process is highly sensitive to small amounts of impurities deposited on the surface of the nanotube.
AB - This report describes the measurements on individual nitrogen-doped multi-walled carbon nanotubes mounted on tungsten support tips. Both the current-voltage characteristics and the energy spectrum of the emitted electron beam revealed field emission behavior similar to that shown for the best metallic emitters. The experimental results correspond with numerical calculations based on electron microscopy images of the nanotubes. The work function was derived and amounted to 5.0 eV. Finally, it is shown that the emission process is highly sensitive to small amounts of impurities deposited on the surface of the nanotube.
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U2 - 10.1016/j.cplett.2004.08.010
DO - 10.1016/j.cplett.2004.08.010
M3 - Article
AN - SCOPUS:7944236675
VL - 396
SP - 126
EP - 130
JO - Chemical Physics Letters
JF - Chemical Physics Letters
SN - 0009-2614
IS - 1-3
ER -