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X-ray-activated long persistent phosphors featuring strong UVC afterglow emissions
Phosphors emitting visible and near-infrared persistent luminescence have been explored extensively owing to their unusual properties and commercial interest in their applications such as glow-in-the-dark paints, optical information storage, and in vivo bioimaging. However, no persistent phosphor th...
Autores principales: | , , , , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6234205/ https://www.ncbi.nlm.nih.gov/pubmed/30455871 http://dx.doi.org/10.1038/s41377-018-0089-7 |
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author | Yang, Yan-Min Li, Zhi-Yong Zhang, Jun-Ying Lu, Yue Guo, Shao-Qiang Zhao, Qing Wang, Xin Yong, Zi-Jun Li, Hong Ma, Ju-Ping Kuroiwa, Yoshihiro Moriyoshi, Chikako Hu, Li-Li Zhang, Li-Yan Zheng, Li-Rong Sun, Hong-Tao |
author_facet | Yang, Yan-Min Li, Zhi-Yong Zhang, Jun-Ying Lu, Yue Guo, Shao-Qiang Zhao, Qing Wang, Xin Yong, Zi-Jun Li, Hong Ma, Ju-Ping Kuroiwa, Yoshihiro Moriyoshi, Chikako Hu, Li-Li Zhang, Li-Yan Zheng, Li-Rong Sun, Hong-Tao |
author_sort | Yang, Yan-Min |
collection | PubMed |
description | Phosphors emitting visible and near-infrared persistent luminescence have been explored extensively owing to their unusual properties and commercial interest in their applications such as glow-in-the-dark paints, optical information storage, and in vivo bioimaging. However, no persistent phosphor that features emissions in the ultraviolet C range (200–280 nm) has been known to exist so far. Here, we demonstrate a strategy for creating a new generation of persistent phosphor that exhibits strong ultraviolet C emission with an initial power density over 10 milliwatts per square meter and an afterglow of more than 2 h. Experimental characterizations coupled with first-principles calculations have revealed that structural defects associated with oxygen introduction-induced anion vacancies in fluoride elpasolite can function as electron traps, which capture and store a large number of electrons triggered by X-ray irradiation. Notably, we show that the ultraviolet C afterglow intensity of the yielded phosphor is sufficiently strong for sterilization. Our discovery of this ultraviolet C afterglow opens up new avenues for research on persistent phosphors, and it offers new perspectives on their applications in terms of sterilization, disinfection, drug release, cancer treatment, anti-counterfeiting, and beyond. |
format | Online Article Text |
id | pubmed-6234205 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-62342052018-11-19 X-ray-activated long persistent phosphors featuring strong UVC afterglow emissions Yang, Yan-Min Li, Zhi-Yong Zhang, Jun-Ying Lu, Yue Guo, Shao-Qiang Zhao, Qing Wang, Xin Yong, Zi-Jun Li, Hong Ma, Ju-Ping Kuroiwa, Yoshihiro Moriyoshi, Chikako Hu, Li-Li Zhang, Li-Yan Zheng, Li-Rong Sun, Hong-Tao Light Sci Appl Article Phosphors emitting visible and near-infrared persistent luminescence have been explored extensively owing to their unusual properties and commercial interest in their applications such as glow-in-the-dark paints, optical information storage, and in vivo bioimaging. However, no persistent phosphor that features emissions in the ultraviolet C range (200–280 nm) has been known to exist so far. Here, we demonstrate a strategy for creating a new generation of persistent phosphor that exhibits strong ultraviolet C emission with an initial power density over 10 milliwatts per square meter and an afterglow of more than 2 h. Experimental characterizations coupled with first-principles calculations have revealed that structural defects associated with oxygen introduction-induced anion vacancies in fluoride elpasolite can function as electron traps, which capture and store a large number of electrons triggered by X-ray irradiation. Notably, we show that the ultraviolet C afterglow intensity of the yielded phosphor is sufficiently strong for sterilization. Our discovery of this ultraviolet C afterglow opens up new avenues for research on persistent phosphors, and it offers new perspectives on their applications in terms of sterilization, disinfection, drug release, cancer treatment, anti-counterfeiting, and beyond. Nature Publishing Group UK 2018-11-14 /pmc/articles/PMC6234205/ /pubmed/30455871 http://dx.doi.org/10.1038/s41377-018-0089-7 Text en © The Author(s) 2018 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Article Yang, Yan-Min Li, Zhi-Yong Zhang, Jun-Ying Lu, Yue Guo, Shao-Qiang Zhao, Qing Wang, Xin Yong, Zi-Jun Li, Hong Ma, Ju-Ping Kuroiwa, Yoshihiro Moriyoshi, Chikako Hu, Li-Li Zhang, Li-Yan Zheng, Li-Rong Sun, Hong-Tao X-ray-activated long persistent phosphors featuring strong UVC afterglow emissions |
title | X-ray-activated long persistent phosphors featuring strong UVC afterglow emissions |
title_full | X-ray-activated long persistent phosphors featuring strong UVC afterglow emissions |
title_fullStr | X-ray-activated long persistent phosphors featuring strong UVC afterglow emissions |
title_full_unstemmed | X-ray-activated long persistent phosphors featuring strong UVC afterglow emissions |
title_short | X-ray-activated long persistent phosphors featuring strong UVC afterglow emissions |
title_sort | x-ray-activated long persistent phosphors featuring strong uvc afterglow emissions |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6234205/ https://www.ncbi.nlm.nih.gov/pubmed/30455871 http://dx.doi.org/10.1038/s41377-018-0089-7 |
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