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The Raman spectrum of nanocrystalline diamond

journal contribution
posted on 2000-12-15, 00:00 authored by S Prawer, K W Nugent, D N Jamieson, Julius Orwa, L A Bursill, J L Peng
Nanometre sized diamond powder has been purified by centrifugation to remove contamination from sp2 bonded carbon. The purified powder has been characterized using electron energy loss spectroscopy (EELS) and Raman spectroscopy. The EELS spectra confirmed the absence of sp2 bonded carbon and showed strong contributions from surface plasmons. Strong relatively sharp peaks are observed in the Raman spectra at 500, 1140, 1132 and 1630cm-1. By comparing the Raman spectra of the nanodiamond clusters with that of amorphized diamond and with calculations of the vibrational density of states we are able to suggest the origin of features in the vibrational spectrum from nanocrystalline diamond.

History

Journal

Chemical physics letters

Volume

332

Issue

1-2

Pagination

93 - 97

Publisher

Elsevier

Location

Amsterdam, The Netherlands

ISSN

0009-2614

Language

eng

Publication classification

C Journal article; C1.1 Refereed article in a scholarly journal

Copyright notice

2000, Elsevier

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