Raman spectra for characterization of onion-like carbon . Journal of Nanoelectronics and Optoelectronics Volume 8, Issue 1, January 2013, Pages 106-109

14 сентября 2018
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Контактные данные автора публикации Bokova-Sirosh, S.N.a, Pershina, A.V.ab, Kuznetsov, V.L.cd, Ishchenko, A.V.c, Moseenkov, S.I.c, Orekhov, A.S.ef, Obraztsova, E.D.a a A. M. Prokhorov General Physics Institute, RAS, 38 Vavilov Street, 119991, Moscow, Russian F
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Аннотация

In this work the Raman spectroscopy abilities for diagnostics of carbon onions synthesized from nanodiamonds have been analyzed. Several series of nanodiamonds transformed into onion-like carbon by heating at 1000-1900 K in vacuum were characterized with Raman spectroscopy. A high resolution transmission electron microscopy (HRTEM) was used to estimate the average size of nanodiamonds in the series synthesized by different methods. Each series consisted of a pristine nanodiamond powder and materials appeared after its heat treatment at different temperatures in vacuum. The changes corresponding to the nanodiamond crystal transformation into the onion-like carbon (via the stage of diamond cores enveloped by a few layer graphene) have been revealed in Raman spectra. The basic attention has been paid to behavior of D (disorder-induced), G (graphite) and 2D (two-phonon scattering)-bands in the Raman spectra. © 2013 American Scientific Publishers All rights reserved.



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Author keywords

Carbon Onions; Raman Scattering



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Indexed keywords

Average size; Carbon onions; Crystal transformation; Few-layer graphene; In-vacuum; Nano diamond; Nano-diamond powder; Onion-like carbon
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