| Issue |
Europhys. Lett.
Volume 46, Number 2, April II 1999
|
|
|---|---|---|
| Page(s) | 245 - 250 | |
| Section | Condensed matter: electronic structure, electrical, magnetic and optical properties | |
| DOI | https://doi.org/10.1209/epl/i1999-00251-7 | |
| Published online | 01 September 2002 | |
Electron field emission from cluster-assembled carbon thin films
1
Engineering Department, Cambridge University - CB2 1PZ, UK
2
INFM-Dipartimento di Fisica, Università di Milano Via Celoria 16,
20133 Milano, Italy
Received:
18
November
1998
Accepted:
11
February
1999
Cluster-assembled carbon films deposited at room temperature from a supersonic
cluster beam are found to be good electron field emitters. The films have
been characterized by Raman spectroscopy showing a largely sp2 bonded character.
Scanning Electron Microscopy shows that the films have a low-density granular
structure, characterized by voids on the nanoscale. We have observed a threshold
field of 
for an emission current density of 
,
among the lowest values reported for a carbon phase. The observed field emission
characteristics suggest that this nanostructured material may be interesting for
flat panel display applications.
PACS: 79.70.+q – Field emission, ionization, evaporation, and desorption / 61.46.+w – Clusters, nanoparticles, and nanocrystalline materials / 61.48.+c – Fullerenes and fullerene-related materials
© EDP Sciences, 1999
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