Lanthanide-based metal halides prepared at room temperature by recrystallization method for X-ray imaging

Huwei Li; Kai Li; Zheyu Li; Xinyu Fu; Qingxing Yang; Nan Wang; Xinyu Wang; Jing Feng; Shuyan Song; Hongjie Zhang

doi:10.1038/s41377-025-01839-5

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Lanthanide-based metal halides prepared at room temperature by recrystallization method for X-ray imaging

Original Articles

- Lanthanide-based metal halides prepared at room temperature by recrystallization method for X-ray imaging
- Light: Science & Applications Vol. 14, Issue 7, Pages: 2009-2018(2025)
- Affiliations：
  
  1.State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
  2.State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, China
  3.School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei 230026, China
  4.Department of Chemistry, Tsinghua University, Beijing 100084, China
- Author bio：
  
  Jing Feng (fengj@ciac.ac.cn)
  Shuyan Song (songsy@ciac.ac.cn)
  Hongjie Zhang (hongjie@ciac.ac.cn)
- Funds：
- DOI：10.1038/s41377-025-01839-5
  CLC：
- Received：23 September 2024，
  
  Revised：19 March 2025，
  
  Accepted：20 March 2025，
  
  Published Online：14 May 2025，
  
  Published：31 July 2025
- Accepted：
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Li, H. W. et al. Lanthanide-based metal halides prepared at room temperature by recrystallization method for X-ray imaging. Light: Science & Applications, 14, 2009-2018 (2025).
DOI：

Li, H. W. et al. Lanthanide-based metal halides prepared at room temperature by recrystallization method for X-ray imaging. Light: Science & Applications, 14, 2009-2018 (2025). DOI： 10.1038/s41377-025-01839-5.

摘要

Abstract

Lanthanide (Ln)-based metal halides with excellent luminescence properties

large Stokes shifts

and low toxicity have aroused wide attention as scintillators for X-ray imaging. However

the lack of fast and mild synthesis methods of Ln-based metal halides

as one of the technical challenges

limits their applications. Here

benefiting from the innovative selection of methanol and ethanol as the solvent and anti-solvent

respectively

a series of Cs

LnCl

(Ln = Ce

Lu) microcrystals (MCs) were prepared via the recrystallization method at room temperature for the first time. This recrystallization method could also realize large-scale production at one time and recyclable recrystallization of single-element MCs and the preparation of high-entropy five-element Cs

{TbDyHoErTm}

crystals. Among these Cs

LnCl

MCs

TbCl

MCs with 4f → 5d absorption transition possess the highest photoluminescence quantum yield of 90.8%. Besides

under X-ray irradiation

TbCl

MCs show a high light yield of ~51

800 photons MeV

−1

and the as-fabricated thin films possess promising X-ray imaging ability and excellent spatial resolutions (12 lp mm

−1

). This work provides a new method for ultrafast preparing Ln-based metal halides under mild synthetic conditions and highlights their excellent potential as scintillators for X-ray imaging.

关键词

Keywords

references

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