X-ray-activated long persistent phosphors featuring strong UVC afterglow emissions
Yan-Min Yang,Zhi-Yong Li,Junying Zhang,Yue Lu,Shaoqiang Guo,Qing Zhao,Xin Wang,Zi-Jun Yong,Hong Li,Ju-Ping Ma,Yoshihiro Kuroiwa,Chikako Moriyoshi,Lili Hu,Li-Yan Zhang,Lirong Zheng,Hong-Tao Sun +15 more
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TLDR
This work demonstrates 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, and shows that the ultraviolet C after glow intensity of the yielded phosphor is sufficiently strong for sterilization.Abstract:
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.read more
Citations
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Controlling Electron Trap Depth To Enhance Optical Properties of Persistent Luminescence Nanoparticles for In Vivo Imaging ThomasMaldiney, † AurelieLecointre, ‡ BrunoViana,* ,‡ AurelieBessiere, ‡ MichelBessodes, † DidierGourier, ‡
Cyrille Richard,Daniel Scherman +1 more
TL;DR: A novel composition of trivalent lanthanide Ln(3+) electron traps is identified for in vivo imaging, displaying a strong near-infrared afterglow centered on 685 nm, and evidence that intravenous injection of such persistent luminescence nanoparticles in mice allows not only improved but highly sensitive detection through living tissues.
Journal ArticleDOI
High-resolution X-ray luminescence extension imaging
Xiangyu Ou,Xian Qin,Bolong Huang,Jie Zan,Qinxia Wu,Zhongzhu Hong,Lili Xie,Hongyu Bian,Zhigao Yi,Xiaofeng Chen,Yiming Wu,Xiaorong Song,Juan Li,Qiushui Chen,Qiushui Chen,Huanghao Yang,Huanghao Yang,Xiaogang Liu +17 more
TL;DR: In this article, the authors demonstrate ultralong-lived X-ray trapping for flat-panel-free, high-resolution, three-dimensional imaging using a series of solution-processable, lanthanide-doped nanoscintillators.
Journal ArticleDOI
X-ray-activated persistent luminescence nanomaterials for NIR-II imaging.
Peng Pei,Ying Chen,Caixia Sun,Yong Fan,Yanmin Yang,Xuan Liu,Lingfei Lu,Mengyao Zhao,Hongxin Zhang,Dongyuan Zhao,Xiaogang Liu,Fan Zhang +11 more
TL;DR: X-ray activated, lanthanide-based nanoparticles with a tunable emission in the biologically relevant NIR-II spectral region, which allows high-contrast, multimodal in vivo deep-tissue organ imaging.
Journal ArticleDOI
Organic phosphors with bright triplet excitons for efficient X-ray-excited luminescence
Xiao Wang,Huifang Shi,Huili Ma,Wenpeng Ye,Lulu Song,Jie Zan,Xiaokang Yao,Xiangyu Ou,Guohui Yang,Zhu Zhao,Manjeet Singh,Chongyang Lin,He Wang,Wenyong Jia,Qian Wang,Jiahuan Zhi,Chaomin Dong,Xueyan Jiang,Yong'an Tang,Xiaoji Xie,Yang Michael Yang,Jianpu Wang,Qiushui Chen,Yu Wang,Huanghao Yang,Guoqing Zhang,Zhongfu An,Zhongfu An,Xiaogang Liu,Xiaogang Liu,Wei Huang,Wei Huang,Wei Huang +32 more
TL;DR: In this paper, metal-free organic phosphors based on a molecular design that supports efficient triplet exciton harvesting to enhance radioluminescence have been proposed for X-ray imaging.
Journal ArticleDOI
X-ray-charged bright persistent luminescence in NaYF4:Ln3+@NaYF4 nanoparticles for multidimensional optical information storage.
Yixi Zhuang,Dunrong Chen,Wenjing Chen,Wenxing Zhang,Xin Su,Xin Su,Renren Deng,Zhongfu An,Hongmin Chen,Rong-Jun Xie +9 more
TL;DR: In this article, the authors reported that monodispersed nanoscale NaYF4:Ln3+ nanoparticles can also be an excellent persistent luminescent (PersL) material.
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Sunlight-activated long-persistent luminescence in the near-infrared from Cr 3+ -doped zinc gallogermanates
Zhengwei Pan,Yi-Ying Lu,Feng Liu +2 more
TL;DR: A series of Cr(3+)-doped zinc gallogermanate NIR persistent phosphors that exhibit strong emission at 650-1,000 nm, extending beyond the typical 690-750 nm, and with a super-long afterglow of more than 360 h are reported.
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