Low-threshold field electron emission from carbon nanoclusters formed upon cold destruction of graphite |
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| Authors: | G N Fursey V I Petrick and D V Novikov |
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| Institution: | 1.Surface Physics and Electronics Research Center,Bonch-Bruevich State University of Telecommunications,St. Petersburg,Russia |
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| Abstract: | The field-emission characteristics of carbon nanoclusters (graphenes, nanotubes, their compositions with microdiamonds) produced
by the cold destruction of natural graphite are studied. The structure of a coating of carbon nanoclusters on a tungsten cathode
is examined by field emission microscopy, transmission electron microscopy, and electron diffraction. The high-intensity stable
field emission of these clusters is shown to be characterized by a low field threshold. The mechanism of the low-threshold
emission from carbon nanoclusters is discussed. |
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