期刊
PHYSICA B-CONDENSED MATTER
卷 405, 期 21, 页码 4570-4573出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physb.2010.08.041
关键词
Carboxylation; Resonance Raman spectroscopy; Single-walled carbon nanotubes; Defects; Haeckelites
资金
- Dayton [110527]
- NSF-ADVANCE [NSF0123690]
Changes in the vibrational response of single-walled carbon nanotubes (SWCNTs) resulting from the introduction of structural defects on their body were studied using resonance Raman spectroscopy. Structural defects were introduced on the SWCNTs by subjecting them to carboxylation for different intervals of time. Various Raman modes were observed, including the D, G(+)/G(-), G' modes, and new defect induced modes were identified. Weaker vibrational modes corresponding to Stone-Wales defects with specific structures known as Haeckelites were identified. These modes were compared with the theoretically calculated modes and correlated to O(5,6,7) and R(5,7) Haeckelite structures. (C) 2010 Elsevier B.V. All rights reserved.
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