Carbon ad-dimer defects in carbon nanotubes.
The adsorption of carbon dimers on carbon nanotubes leads to a rich spectrum of structures and electronic structure modifications. Barriers for the formation of carbon dimer induced defects are calculated and found to be considerably lower than those for the Stone-Wales defect. The electronic states introduced by the ad-dimers depend on defect structure and tube type and size. Multiple carbon ad-dimers provide a route to structural engineering of patterned tubes that may be of interest for nanoelectronics.
Sternberg
M
M
Materials Science and Chemistry Divisions, Argonne National Laboratory, Argonne, Illinois 60439, USA.
Curtiss
L A
LA
Gruen
D M
DM
Kedziora
G
G
Horner
D A
DA
Redfern
P C
PC
Zapol
P
P