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Please use this identifier to cite or link to this item: https://dspace.ffh.bg.ac.rs/handle/123456789/1799
Title: Gamma ray-assisted irradiation of few-layer graphene films: A Raman spectroscopy study
Authors: Kleut, D. N.
Marković, Z. M.
Holclajtner Antunović, Ivanka 
Dramićanin, M. D.
Kepić, D. P.
Todorović Marković, B. M.
Keywords: few-layer grapheme;gamma irradiation;graphene films;Raman spectroscopy
Issue Date: 1-Sep-2014
Journal: Physica Scripta Topical Issues
Abstract: 
This paper represents results of a Raman spectroscopy study of gamma-irradiated few-layer graphene thin films at three different doses: 25, 50 and 110 kGy. Graphene thin films were deposited by the vacuum filtration method and then transferred onto glass substrate. Raman spectroscopy and atomic force microscopy analysis have shown that the average in-plane crystallite size Laof graphene thin films varies slightly when an irradiation dose is applied. Raman spectroscopy revealed that gamma irradiation of graphene thin films resulted in slight p-doping of the graphene thin film surface. It was found that during gamma irradiation at a dose of 110 kGy, the graphene sheets merged. As a result, the number of incorporated defects in the graphene structure was reduced (the ID/IGratio decreased with the increase in the applied dose).
URI: https://dspace.ffh.bg.ac.rs/handle/123456789/1799
ISSN: 0281-1847
DOI: 10.1088/0031-8949/2014/T162/014025
Appears in Collections:Conference paper

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University of Belgrade
Faculty of Physical Chemistry
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11158 Belgrade 118
PAC 105305
SERBIA
University of Belgrade Faculty of Physical Chemistry