Morphologies and related electronic
properties of carbon nanotubes
J-C. Charlier
(UniversitÈ Catholique de Louvain)
The
electronic structures of different morphologies of carbon nanotubes
are investigated within either
tight-binding or
ab initio
frameworks. After a brief description of the electronic properties of the
"perfect" rolled-up graphene sheet, nanotubes containing pentagon-heptagon
pairs, tips (hemispherical caps),
sp
lines responsible for polygonization, multi-shell and solid-state packings
(bundles) are studied in order to point out the influence of such defects
on the electronic states of the "perfect" cylinders. Most of the time, a
structural optimization was performed on the atomic topology, prior to
the calculation of the electronic properties. Connections with
experimental facts are indicated as frequently as possible.
Order No.:
JA809-003 © 1998 MRS
Go to September 1998 Table of Contents
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