articleAdvanced MaterialsSep 18, 2019Closed access

Lead‐Free Halide Rb 2 CuBr 3 as Sensitive X‐Ray Scintillator

BYBo YangLYLixiao YinGNGuangda NiuJYJun‐Hui YuanKXKan‐Hao Xue

Wuhan National Laboratory for Optoelectronics · Huazhong University of Science and Technology · +1 more institution

PubMed
Indexed incrossrefpubmed

Abstract

Abstract Scintillators are widely utilized for radiation detections in many fields, such as nondestructive inspection, medical imaging, and space exploration. Lead halide perovskite scintillators have recently received extensive research attention owing to their tunable emission wavelength, low detection limit, and ease of fabrication. However, the low light yields toward X‐ray irradiation and the lead toxicity of these perovskites severely restricts their practical application. A novel lead‐free halide is presented, namely Rb 2 CuBr 3 , as a scintillator with exceptionally high light yield. Rb 2 CuBr 3 exhibits a 1D crystal structure and enjoys strong carrier confinement and near‐unity photoluminescence…

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12

Topics & keywords

Topics
Keywords
  • Scintillator
  • Radioluminescence
  • Photoluminescence
  • Materials science
  • Quantum yield
  • Halide
  • Absorption (acoustics)
  • Perovskite (structure)
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