Journal
RADIATION MEASUREMENTS
Volume 71, Issue -, Pages 201-204Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.radmeas.2014.01.008
Keywords
Nanocomposite; Photonic nanodevice; Gamma radiation effect; Europium complex; Smart materials; Polyvinyl butyral
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The aim of this work is to evaluate the influence of gamma radiation on a material constituted by a photonic complex used in a UV dosimetry device embedded in a polymeric composite with multiwalled carbon nanotubes (MWCNT). Films of CNT-free and MWCNT-containing composites were exposed to a gamma radiation beam of Co-60. Characterization was performed by X-ray powder diffraction (XRD), thermogravimetric curves (TGA), and luminescence spectroscopy. The results indicate that the presented self-standing hybrid films show improvements to act as a better light conversion molecular device (LCMD) for UV dosimetry applications. Best results are attained after 50 kGy of gamma irradiation (60Co) for CNT-free composites, and 5 kGy for MWCNT-containing films. (C) 2014 Elsevier Ltd. All rights reserved.
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