{"title":"Controlled synthesis of SrFCl: Tb nanoscintillators with improved X-ray detection limit","authors":"Aoqing Wei, Jingtao Zhao, Danyang Shen, Lei Lei","doi":"10.1016/j.jlumin.2024.120972","DOIUrl":null,"url":null,"abstract":"<div><div>Lanthanide-doped fluoride nanoparticles show promising applications in X-ray imaging. Enhancing the intensity of lanthanide activators in X-ray excited optical luminescence (XEOL) is crucial for reducing the risk of X-ray irradiation. In this work, we report that the SrFCl: Tb nanoparticles can be employed as scintillator for X-ray detection. The sizes of SrFCl: Tb are tuned by changing the chlorination temperature. The XEOL intensity of the SrFCl: Tb nanoscintillators (NSs) is approximately 4.3 times higher than that of SrF<sub>2</sub>: Tb seeds. Moreover, under the same X-ray irradiation conditions, the XEOL intensity of SrFCl: Tb is stronger than those of common CaF<sub>2</sub>: Tb, BaF<sub>2</sub>: Tb, and NaYF<sub>4</sub>: Tb NSs with similar mean particle sizes. The X-ray detection limit of the SrFCl: 15 Tb NSs is as low as 30.71 nGy s<sup>−1</sup>. Our results will promote the exploration of lanthanide-doped fluoride NSs with high X-ray detection performances.</div></div>","PeriodicalId":16159,"journal":{"name":"Journal of Luminescence","volume":"277 ","pages":"Article 120972"},"PeriodicalIF":3.3000,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Luminescence","FirstCategoryId":"101","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0022231324005362","RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"OPTICS","Score":null,"Total":0}
引用次数: 0
Abstract
Lanthanide-doped fluoride nanoparticles show promising applications in X-ray imaging. Enhancing the intensity of lanthanide activators in X-ray excited optical luminescence (XEOL) is crucial for reducing the risk of X-ray irradiation. In this work, we report that the SrFCl: Tb nanoparticles can be employed as scintillator for X-ray detection. The sizes of SrFCl: Tb are tuned by changing the chlorination temperature. The XEOL intensity of the SrFCl: Tb nanoscintillators (NSs) is approximately 4.3 times higher than that of SrF2: Tb seeds. Moreover, under the same X-ray irradiation conditions, the XEOL intensity of SrFCl: Tb is stronger than those of common CaF2: Tb, BaF2: Tb, and NaYF4: Tb NSs with similar mean particle sizes. The X-ray detection limit of the SrFCl: 15 Tb NSs is as low as 30.71 nGy s−1. Our results will promote the exploration of lanthanide-doped fluoride NSs with high X-ray detection performances.
期刊介绍：
The purpose of the Journal of Luminescence is to provide a means of communication between scientists in different disciplines who share a common interest in the electronic excited states of molecular, ionic and covalent systems, whether crystalline, amorphous, or liquid.
We invite original papers and reviews on such subjects as: exciton and polariton dynamics, dynamics of localized excited states, energy and charge transport in ordered and disordered systems, radiative and non-radiative recombination, relaxation processes, vibronic interactions in electronic excited states, photochemistry in condensed systems, excited state resonance, double resonance, spin dynamics, selective excitation spectroscopy, hole burning, coherent processes in excited states, (e.g. coherent optical transients, photon echoes, transient gratings), multiphoton processes, optical bistability, photochromism, and new techniques for the study of excited states. This list is not intended to be exhaustive. Papers in the traditional areas of optical spectroscopy (absorption, MCD, luminescence, Raman scattering) are welcome. Papers on applications (phosphors, scintillators, electro- and cathodo-luminescence, radiography, bioimaging, solar energy, energy conversion, etc.) are also welcome if they present results of scientific, rather than only technological interest. However, papers containing purely theoretical results, not related to phenomena in the excited states, as well as papers using luminescence spectroscopy to perform routine analytical chemistry or biochemistry procedures, are outside the scope of the journal. Some exceptions will be possible at the discretion of the editors.
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