Research Progress on CsPbBr ₃ Single Crystal-Based Nuclear Radiation Detectors

Nuclear radiation detectors serve as fundamental tools in fields of medical imaging, nuclear radiation monitoring, security inspection, and advanced technology development, and their continuous advancement is vital for public safety and propelling progress in nuclear medicine. The performance improvement of the detectors is predominantly dependent on the development of advanced detection materials. Among various nuclear radiation detection materials, halide perovskite CsPbBr 3 single crystals stand out because of the combined capabilities of wide band gap, high resistivity, and high carrier mobility-lifetime product. This article systematically reviews recent progress in the growth of CsPbBr 3 single crystals, the characterization of crystal quality, and the application in nuclear radiation detectors, which provides the qualitative correlation between key physical properties of the single crystal and crucial performance metrics of the detector.