Carbon Ad-dimer defects in carbon nanotubes - art. no. 075506

被引:62
作者
Sternberg, M
Curtiss, LA
Gruen, DM
Kedziora, G
Horner, DA
Redfern, PC
Zapol, P
机构
[1] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA
[2] Argonne Natl Lab, Div Chem, Argonne, IL 60439 USA
[3] High Performance Technol Inc, Wright Patterson AFB, OH 45433 USA
[4] N Cent Coll, Naperville, IL 60540 USA
关键词
D O I
10.1103/PhysRevLett.96.075506
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
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.
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页数:4
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