CsPbX₃ (X = Cl, Br, I) perovskite quantum dots (QDs) have emerged as a kind of brand-new X-ray scintillator with high performance. Herein, following the phase transformation from amorphous to crystalline, CsPb(Cl,Br)₃ QDs are in-situ precipitated from a borate glass matrix. It is demonstrated for the first time that the perovskite QDs-glass composite yields radioluminescence (RL), showing X-ray excited RL ∼1/18 to that of commercial Bi₄Ge₃O₁₂ (BGO) single crystal. The color of RL is adjustable, dependent on the anionic species. Evidently, the high power X-ray induced damage in material is recoverable just by re-heating it at glass transition temperature. This work highlights the partial settlement of tough issues in perovskite QDs as scintillators, such as, physical stability, service lifetime, Pb-toxicity, and production scale.

CsPbX ₃（X = Cl，Br，I）钙钛矿量子点（QDs）已经成为一种高性能的新型X射线闪烁体。在此，在从无定形到结晶的相变之后，CsPb（Cl，Br）₃ QDs从硼酸盐玻璃基质中原位沉淀。首次证明钙钛矿QDs-玻璃复合材料可产生放射致发光（RL），其X射线激发的RL约为商用Bi ₄ Ge ₃ O _12的RL的1/18。（BGO）单晶。RL的颜色是可调节的，具体取决于阴离子种类。显然，仅通过在玻璃化转变温度下将其重新加热，即可恢复材料中高功率X射线引起的损坏。这项工作强调了钙钛矿量子点中作为闪烁体的棘手问题的部分解决，例如物理稳定性，使用寿命，Pb毒性和生产规模。