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Identification of Complex Carbon Nanotube StructuresA variety of complex carbon nanotube (CNT) structures have been observed experimentally. These include sharp bends, branches, tori, and helices. They are believed to be formed by using topological defects such as pentagons and heptagons to connect different CNT. The effects of type, number, and arrangement (separation and orientation) of defects on atomic structures and energetics of complex CNT are investigated using topology, quantum mechanics and molecular mechanics calculations. Energetically stable models are derived for identification of observed complex CNT structures.
Document ID
20020065534
Acquisition Source
Ames Research Center
Document Type
Preprint (Draft being sent to journal)
Authors
Han, Jie
(NASA Ames Research Center Moffett Field, CA United States)
Saini, Subhash
Date Acquired
August 20, 2013
Publication Date
January 1, 1998
Subject Category
Chemistry And Materials (General)
Funding Number(s)
PROJECT: RTOP 519-40-12
CONTRACT_GRANT: NAS2-14303
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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