Timing performance of lead halide perovskite nanoscintillators embedded in a polystyrene matrix

Nanomaterials like CsPbBr₃, benefiting from quantum confinement effects to feature ultra-fast decay time and tunable emission, are paving the way for the next generation of fast timing detectors. However, an ongoing challenge is to exploit their favorable properties in a full detector, given their size and instability. Embedding halide perovskite nanocrystals in solid matrices like organic polymers can provide the required stability and, in the case of high nanoparticle filling factors with little aggregation, results in a flexible scintillator, featuring sub-ns decay times.

Description

Fig_May2023_1 | photo: V. Jarý

Photographs of the samples and their respective Petri dishes after removing the sample (OA and OAm = oleic acid and oleylamin, DDAB = didodecyldimethylammonium bromid)