Low-dose real-time X-ray imaging with nontoxic double perovskite scintillators

Abstract X-rays are widely used in probing inside information nondestructively, enabling broad applications in the medical radiography and electronic industries. X-ray imaging based on emerging lead halide perovskite scintillators has received extensive attention recently. However, the strong self-absorption, relatively low light yield and lead toxicity of these perovskites restrict their practical applications. Here, we report a series of nontoxic double-perovskite scintillators of Cs 2 Ag 0.6 Na 0.4 In 1-y Bi y Cl 6 . By controlling the content of the heavy atom Bi 3+ , the X-ray absorption coefficient, radiative emission efficiency, light yield and light decay were manipulated to maximise the scintillator…

• NN
  National Natural Science Foundation of China

  Awards: 61804134, U1809204, 61525106, 2017YFA0207700
• NK
  National Key Research and Development Program of China

  Award: 2017YFA0207700
• NS
  Natural Science Foundation of Zhejiang Province

  Award: LR18F050001