Field emission patterns originating from pentagons at the tip of a carbon nanotube

Authors
Saito, Y Hata, K Murata, T
Citation
Y. Saito et al., Field emission patterns originating from pentagons at the tip of a carbon nanotube, JPN J A P 2, 39(4A), 2000, pp. L271-L272
Citations number
12
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS → ACNP
Volume
39
Issue
4A
Year of publication
2000
Pages
L271 - L272
Database
ISI
SICI code
Abstract
Field emission of electrons from multiwall carbon nanotubes (MWCNTs) has be en investigated in ultra-high vacuum by field emission microscopy (FEM). MW CNTs whose tips are capped by curved graphite layers give FEM patterns cons isting of 6 bright pentagons, each of which has a dark region in its center . Interference fringes are also observed between adjacent pentagonal rings. The present result shows a direct evidence of the presence of 6 pentagons on a tip of a closed carbon nanotube.