X-ray-activated long persistent phosphors featuring strong UVC afterglow emissions
文献类型：期刊论文
| 作者 | Zhang, Li-Yan; Ma, Ju-Ping; Li, Hong ; Yong, Zi-Jun; Wang, Xin; Yang, Yan-Min; Li, Zhi-Yong; Zhang, Jun-Ying; Lu, Yue; Guo, Shao-Qiang
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| 刊名 | LIGHT-SCIENCE & APPLICATIONS
 |
| 出版日期 | 2018 |
| 卷号 | 7页码:88 |
| ISSN号 | 2047-7538 |
| DOI | 10.1038/s41377-018-0089-7 |
| 文献子类 | Article |
| 英文摘要 | 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. |
| WOS关键词 | LUMINESCENCE ; MECHANISM ; DY3+ ; THERMOLUMINESCENCE ; NANOPARTICLES ; IONS ; CE3+ ; PR3+ ; RED |
| WOS研究方向 | Optics |
| 语种 | 英语 |
| CSCD记录号 | CSCD:6417406 |
| WOS记录号 | WOS:000450708300002 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/286876]  |
| 专题 | 中国科学院高能物理研究所_中国散裂中子源 高能物理研究所_粒子天体物理中心 高能物理研究所_多学科研究中心 高能物理研究所_东莞分部 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Zhang, Li-Yan,Ma, Ju-Ping,Li, Hong,et al. X-ray-activated long persistent phosphors featuring strong UVC afterglow emissions[J]. LIGHT-SCIENCE & APPLICATIONS,2018,7:88. |
| APA | Zhang, Li-Yan.,Ma, Ju-Ping.,Li, Hong.,Yong, Zi-Jun.,Wang, Xin.,...&郑黎荣.(2018).X-ray-activated long persistent phosphors featuring strong UVC afterglow emissions.LIGHT-SCIENCE & APPLICATIONS,7,88. |
| MLA | Zhang, Li-Yan,et al."X-ray-activated long persistent phosphors featuring strong UVC afterglow emissions".LIGHT-SCIENCE & APPLICATIONS 7(2018):88. |
入库方式： OAI收割
来源：高能物理研究所
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