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X-ray irradiation-induced structural changes on Single Wall Carbon Nanotubes

Bardi, Niki, Jurewicz, Izabela, King, AK, Alkhorayef, Mohammed, Bradley, David and Dalton, Alan (2017) X-ray irradiation-induced structural changes on Single Wall Carbon Nanotubes Radiation Physics and Chemistry.

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Abstract

Dosimetry devices based on Carbon Nanotubes are a promising new technology. In particular using devices based on single wall carbon nanotubes may offer a tissue equivalent response with the possibility for device miniaturisation, high scale manufacturing and low cost. An important precursor to device fabrication requires a quantitative study of the effects of X-ray radiation on the physical and chemical properties of the individual nanotubes. In this study, we concentrate on the effects of relatively low doses, 20 cGy and 45 cGy, respectively. We use a range of characterization techniques including scanning electron microscopy, Raman spectroscopy and X-ray photoelectron spectroscopy to quantify the effects of the radiation dose on inherent properties of the nanotubes. Specifically we find that the radiation exposure results in a reduction in the sp2 nature of the nanotube bond structure. Moreover, our analysis indicates that the exposure results in nanotubes that have an increased defect density which ultimately effects the electrical properties of the nanotubes.

Item Type: Article
Subjects : Physics
Divisions : Faculty of Engineering and Physical Sciences > Physics
Authors :
NameEmailORCID
Bardi, Nikin.bardi@surrey.ac.ukUNSPECIFIED
Jurewicz, IzabelaIzabela.Jurewicz@surrey.ac.ukUNSPECIFIED
King, AKUNSPECIFIEDUNSPECIFIED
Alkhorayef, Mohammedm.alkhorayef@surrey.ac.ukUNSPECIFIED
Bradley, DavidD.A.Bradley@surrey.ac.ukUNSPECIFIED
Dalton, AlanA.Dalton@surrey.ac.ukUNSPECIFIED
Date : 6 March 2017
Identification Number : 10.1016/j.radphyschem.2017.03.008
Copyright Disclaimer : © 2017. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
Uncontrolled Keywords : Carbon Nanotubes; X-ray radiation; Ionising radiation; Nanomaterials; XPS; Raman
Depositing User : Symplectic Elements
Date Deposited : 28 Mar 2017 15:27
Last Modified : 25 Jul 2017 15:22
URI: http://epubs.surrey.ac.uk/id/eprint/813870

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