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Ultraviolet Luminescence of ZnO Whiskers, Nanowalls, Multipods, and Ceramics as Potential Materials for Fast Scintillators

The presented work is dedicated to the study and comparison of scintillating properties of zinc oxide samples prepared in different morphologies: whiskers, nanowalls, multipods, and ceramics. It was shown that total transmittance, photo- and radioluminescence spectra, and radioluminescence kinetics...

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Autores principales: Venevtsev, Ivan D., Tarasov, Andrey P., Muslimov, Arsen E., Gorokhova, Elena I., Zadorozhnaya, Ludmila A., Rodnyi, Piotr A., Kanevsky, Vladimir M.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8072962/
https://www.ncbi.nlm.nih.gov/pubmed/33923610
http://dx.doi.org/10.3390/ma14082001
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author Venevtsev, Ivan D.
Tarasov, Andrey P.
Muslimov, Arsen E.
Gorokhova, Elena I.
Zadorozhnaya, Ludmila A.
Rodnyi, Piotr A.
Kanevsky, Vladimir M.
author_facet Venevtsev, Ivan D.
Tarasov, Andrey P.
Muslimov, Arsen E.
Gorokhova, Elena I.
Zadorozhnaya, Ludmila A.
Rodnyi, Piotr A.
Kanevsky, Vladimir M.
author_sort Venevtsev, Ivan D.
collection PubMed
description The presented work is dedicated to the study and comparison of scintillating properties of zinc oxide samples prepared in different morphologies: whiskers, nanowalls, multipods, and ceramics. It was shown that total transmittance, photo- and radioluminescence spectra, and radioluminescence kinetics can vary significantly depending on sample structure and preparation conditions. The highest total transmittance was registered for ZnO ceramics (>50% at 0.5 mm thickness). Differences in the transmittance of whiskers, nanowalls, and multipods can be attributed to their shape and thickness which affects the amount of light refraction and scattering. The study of radioluminescence demonstrated that all samples, except undoped ceramics and air annealed whiskers, have predominantly fast luminescence with a decay time <1 ns. High transmittance of ceramics opens the way for their use in the registration of high energy X-ray and gamma radiation, where a large volume of scintillators is required. In cases, where large scintillator thickness is not a necessity, one may prefer to use other ZnO structures, such as ensembles of whiskers and nanowalls. Studies of near-band-edge luminescence components at low temperatures showed that the structure is quite similar in all samples except Ga doped ceramics.
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spelling pubmed-80729622021-04-27 Ultraviolet Luminescence of ZnO Whiskers, Nanowalls, Multipods, and Ceramics as Potential Materials for Fast Scintillators Venevtsev, Ivan D. Tarasov, Andrey P. Muslimov, Arsen E. Gorokhova, Elena I. Zadorozhnaya, Ludmila A. Rodnyi, Piotr A. Kanevsky, Vladimir M. Materials (Basel) Article The presented work is dedicated to the study and comparison of scintillating properties of zinc oxide samples prepared in different morphologies: whiskers, nanowalls, multipods, and ceramics. It was shown that total transmittance, photo- and radioluminescence spectra, and radioluminescence kinetics can vary significantly depending on sample structure and preparation conditions. The highest total transmittance was registered for ZnO ceramics (>50% at 0.5 mm thickness). Differences in the transmittance of whiskers, nanowalls, and multipods can be attributed to their shape and thickness which affects the amount of light refraction and scattering. The study of radioluminescence demonstrated that all samples, except undoped ceramics and air annealed whiskers, have predominantly fast luminescence with a decay time <1 ns. High transmittance of ceramics opens the way for their use in the registration of high energy X-ray and gamma radiation, where a large volume of scintillators is required. In cases, where large scintillator thickness is not a necessity, one may prefer to use other ZnO structures, such as ensembles of whiskers and nanowalls. Studies of near-band-edge luminescence components at low temperatures showed that the structure is quite similar in all samples except Ga doped ceramics. MDPI 2021-04-16 /pmc/articles/PMC8072962/ /pubmed/33923610 http://dx.doi.org/10.3390/ma14082001 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Venevtsev, Ivan D.
Tarasov, Andrey P.
Muslimov, Arsen E.
Gorokhova, Elena I.
Zadorozhnaya, Ludmila A.
Rodnyi, Piotr A.
Kanevsky, Vladimir M.
Ultraviolet Luminescence of ZnO Whiskers, Nanowalls, Multipods, and Ceramics as Potential Materials for Fast Scintillators
title Ultraviolet Luminescence of ZnO Whiskers, Nanowalls, Multipods, and Ceramics as Potential Materials for Fast Scintillators
title_full Ultraviolet Luminescence of ZnO Whiskers, Nanowalls, Multipods, and Ceramics as Potential Materials for Fast Scintillators
title_fullStr Ultraviolet Luminescence of ZnO Whiskers, Nanowalls, Multipods, and Ceramics as Potential Materials for Fast Scintillators
title_full_unstemmed Ultraviolet Luminescence of ZnO Whiskers, Nanowalls, Multipods, and Ceramics as Potential Materials for Fast Scintillators
title_short Ultraviolet Luminescence of ZnO Whiskers, Nanowalls, Multipods, and Ceramics as Potential Materials for Fast Scintillators
title_sort ultraviolet luminescence of zno whiskers, nanowalls, multipods, and ceramics as potential materials for fast scintillators
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8072962/
https://www.ncbi.nlm.nih.gov/pubmed/33923610
http://dx.doi.org/10.3390/ma14082001
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