Title :
A study of field emission from supramolecular carbon structures
Author :
Fursey, G.N. ; Petrick, V.I. ; Novikov, D.V. ; Kotcheryzhenkov, A.V. ; Krosovskii, A.N.
Author_Institution :
Surface Phys. & Electron. Res. Centre, Telecommun. State Univ., St. Petersburg, Russia
Abstract :
The characteristics of field emission from carbon nanoclusters (mainly nanotubes with open ends) produced by cold destruction from natural graphite are investigated. The specimen employed in the study is a coating of carbon nanocluster mixture in N-methylpirolidone upon a tungsten electrode. Field emission microscopy, electron microscopy, electron diffraction and IR spectroscopy are employed in structure studies of the carbon specimen. Investigation of the emission properties of the specimens confirmed that field emission from these materials takes place in electric fields more than two orders of magnitude lower than in metals and semiconductors. The mechanism of electron emission from these materials is evidently linked to tunneling emission.
Keywords :
carbon nanotubes; electron diffraction; electron field emission; infrared spectra; transmission electron microscopy; IR spectroscopy; carbon nanoclusters; cold destruction; electron diffraction; electron microscopy; field emission; field emission microscopy; natural graphite; supramolecular carbon structures; tunneling emission; Carbon dioxide; Carbon nanotubes; Coatings; Diffraction; Electrodes; Electron emission; Electron microscopy; Infrared spectra; Semiconductor materials; Tungsten;
Conference_Titel :
Vacuum Nanoelectronics Conference, 2004. IVNC 2004. Technical Digest of the 17th International
Print_ISBN :
0-7803-8397-4
DOI :
10.1109/IVNC.2004.1354966
