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Directly observable G band splitting in Raman spectra from individual tubular graphite cones

Biomedical Sciences Research Institute Computer Science Research Institute Environmental Sciences Research Institute Nanotechnology & Advanced Materials Research Institute

Shang, NG, Silva, SRP, Jiang, X and Papakonstantinou, P (2011) Directly observable G band splitting in Raman spectra from individual tubular graphite cones. Carbon, 49 . pp. 3048-3054. [Journal article]

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URL: http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TWD-52DC0X5-4&_user=10&_coverDate=08%2F31%2F2011&_alid=1735898927&_rdoc=1&_fmt=high&_orig=search&_origin=search&_zone=rslt_list_item&_cdi=5560&_sort=r&_st=13&_docanchor=&view=c&_ct=1&_acct=C000050

DOI: 10.1016/j.carbon.2011.03.025

Abstract

Individual tubular graphite cones (TGCs) are characterized using Raman spectroscopy atroom temperature. A split G band at 1569–1587 cmÿ1 is directly observed from the root tothe tip of TGCs without requiring surface electromagnetic and chemical enhancementeffects. The G band can be deconvoluted into two Lorentzian peaks at 1571 ± 2 and1584 ± 3 cmÿ1, which may be attributed to the resonance enhancement of a single chiralityexcitation in the innermost tubes and all constituent tubes of the TGCs, respectively.Results suggest that the splitting of G band can be envisaged as a fingerprint for monochiralityof tubular carbon nanomaterials.

Item Type:Journal article
Faculties and Schools:Faculty of Computing & Engineering
Faculty of Computing & Engineering > School of Engineering
Research Institutes and Groups:Engineering Research Institute
Engineering Research Institute > Nanotechnology & Integrated BioEngineering Centre (NIBEC)
ID Code:18313
Deposited By:Professor Pagona Papakonstantinou
Deposited On:03 May 2011 11:29
Last Modified:07 Apr 2014 10:53

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