Ultrafast recrystallisation simplifies the synthesis of lanthanide-based metal halide scintillators

An advancement in the fast synthesis of lanthanide-based metal halides at room temperature is proposed and demonstrated. The reported Cs₃LnCl₆ scintillators are potential candidates in X-ray imaging by providing a safer, more efficient, and environmentally benign alternative to address the long-standing concerns about toxicity and fabrication complexities of existing scintillators. © The Author(s) 2025.