What question did this study set out to answer?

To investigate the ultrafast scintillation properties of CsPbBr3-based single crystals with Br2 over-doping.

February 26, 2026Journal of Materials Chemistry C0 citationsOpen Access

350 ps Ultrafast Room-Temperature Scintillation Realized on CsPbBr3-Based Single Crystals via Br2 Over-Doping

ZLZongxiao LiChinese Academy of Sciences XOXiaoping OuyangNorthwest Institute of Nuclear Technology ZCZhifang ChaiChinese Academy of Sciences

Key Points

To investigate the ultrafast scintillation properties of CsPbBr3-based single crystals with Br2 over-doping.
Synthesis of CsPbBr3 single crystals with varying levels of Br2 doping
Measurement of scintillation time response
Characterization of optical properties under radiation exposure
Achieved 350 picoseconds scintillation response time
Enhanced stopping power in over-doped crystals
Improved optical clarity and emission characteristics observed.

Abstract

Ultrafast scintillators are essential for next-generation radiation detection, positron emission tomography, and high-speed medical imaging. All-inorganic CsPbBr3 perovskites are attractive candidates because of their high stopping power, and excellent optical...

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