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Synthesis and Raman spectroscopic characterisation of carbon nanoscrolls.

Roy, D; Angeles-Tactay, E*; Brown, R J C; Spencer, S J; Fry, T; Dunton, T A; Young, T*; Milton, M J T (2008) Synthesis and Raman spectroscopic characterisation of carbon nanoscrolls. Chem. Phys. Lett., 465 (4-6). pp. 254-257.

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Abstract

Raman characteristics of nanoscrolls including the G-peak, the D-peak and new bands at the low wave-number region are discussed. Four distinct peaks at ~450 cm-1, ~600 cm-1, ~690 cm-1 and ~870 cm-1 are identified to originate from transverse optic and transverse acoustic phonon branches at the K point, the M point and the G point. The Raman spectrum of nanoscrolls is compared with that of highly oriented pyrolytic graphite (HOPG), and the elastic strain in the scrolls due to curvature is estimated analytically to account for the broadening of the G-peak. Synthesis of carbon nanoscrolls by splitting and rupturing graphene planes is also described in detail. The structure and composition of graphene were verified using X ray diffraction and X ray photoelectron spectroscopy. The structure of the nanoscrolls was confirmed by electron microscopy.

Item Type: Article
Keywords: carbon nanoscrolls, Raman spectroscopy, graphene
Subjects: Nanoscience
Last Modified: 02 Feb 2018 13:15
URI: http://eprintspublications.npl.co.uk/id/eprint/4247

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