Ultrathin, Transparent, and High Density Perovskite Scintillator Film for High Resolution X-Ray Microscopic Imaging.

ABSTRACT: Inorganic perovskite quantum dots CsPbX₃ (X = Cl, Br, and I) has recently received extensive attention as a new promising class of X-ray scintillators. However, relatively low light yield (LY) of CsPbX₃ and strong optical scattering of the thick opaque scintillator film restrict their practical applications for high-resolution X-ray microscopic imaging. Here, the Ce³⁺ ion doped CsPbBr₃ nanocrystals (NCs) with enhanced LY and stability are obtained and then the ultrathin (30 µm) and transparent scintillator films with high density are prepared by a suction filtration method. The small amount Ce³⁺ dopant greatly enhances the LY of CsPbBr₃ NCs (about 33 000 photons per MeV), which is much higher than that of bare CsPbBr_3</

SUBMITTER: Wu X 

PROVIDER: S-EPMC9189653 | biostudies-literature | 2022 Jun

REPOSITORIES: biostudies-literature