Hybrid Eu(Ⅱ)-bromide scintillators with efficient 5<italic style="font-style: italic">d</italic>-4<italic style="font-style: italic">f</italic> bandgap transition for X-ray imaging

Kai Han; Jiance Jin; Yuzhen Wang; Xinquan Zhou; Yongsheng Sun; Lihan Chen; Zhiguo Xia

doi:10.1038/s41377-024-01589-w

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Hybrid Eu(Ⅱ)-bromide scintillators with efficient 5d-4f bandgap transition for X-ray imaging

Original Articles

- Hybrid Eu(Ⅱ)-bromide scintillators with efficient 5d-4f bandgap transition for X-ray imaging
- Light: Science & Applications Vol. 13, Issue 10, Pages: 2321-2330(2024)
- Affiliations：
  
  1.The State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Fiber Laser Materials and Applied Techniques, Guangdong Engineering Technology Research and Development Centre of Special Optical Fiber Materials and Devices, School of Physics and Optoelectronics, South China University of Technology, Guangzhou, China
  2.School of Materials Science and Engineering, South China University of Technology, Guangzhou, China
- Author bio：
  
  Zhiguo Xia (xiazg@scut.edu.cn)
- Funds：
- DOI：10.1038/s41377-024-01589-w
  CLC：
- Published：31 October 2024，
  
  Published Online：29 August 2024，
  
  Received：29 February 2024，
  
  Revised：15 August 2024，
  
  Accepted：16 August 2024
- Accepted：
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Han, K. et al. Hybrid Eu(Ⅱ)-bromide scintillators with efficient 5d-4f bandgap transition for X-ray imaging. Light: Science & Applications, 13, 2321-2330 (2024).
DOI：

Han, K. et al. Hybrid Eu(Ⅱ)-bromide scintillators with efficient 5d-4f bandgap transition for X-ray imaging. Light: Science & Applications, 13, 2321-2330 (2024). DOI： 10.1038/s41377-024-01589-w.

摘要

Abstract

Luminescent metal halides are attracting growing attention as scintillators for X-ray imaging in safety inspection

medical diagnosis

etc. Here we present brand-new hybrid Eu(Ⅱ)-bromide scintillators

1D type [Et

]

EuBr

·MeOH and 0D type [Me

]

·MeOH

with spin-allowed 5

-4

bandgap transition emission toward simplified carrier transport during scintillation process. The 1D/0D structures with edge/face -sharing [EuBr

]

4−

octahedra further contribute to lowing bandgaps and enhancing quantum confinement effect

enabling efficient scintillation performance (light yield ~73100 ± 800 Ph MeV

−1

detect limit ~18.6 nGy s

−1

X-ray afterglow ~ 1% @ 9.6 μs). We demonstrate the X-ray imaging with 27.3 lp mm

−1

resolution by embedding Eu(Ⅱ)-based scintillators into AAO film. Our results create the new family of low-dimensional rare-

earth-based halides for scintillation and related optoelectronic applications.

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Keywords

references

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Hybrid Eu(Ⅱ)-bromide scintillators with efficient 5d-4f bandgap transition for X-ray imaging

DOI：10.1038/s41377-024-01589-w

摘要

Abstract

关键词

Keywords

references