Energy Transfer Assisted Fast X-ray Detection in Direct/Indirect Hybrid Perovskite Wafer.

ABSTRACT: Metal halide perovskite scintillators encounter unprecedented opportunities in indirect ionizing radiation detection due to their high quantum yields. However, the long scintillation lifetime of microseconds upon irradiation, known as the afterglow phenomenon, obviously limits their fast development. Here, a new type of hybrid X-ray detector wafer combining direct methylamine lead iodide (MAPbI₃ ) semiconductor and indirect zero-dimensional cesium copper iodide (Cs₃ Cu₂ I₅ ) scintillator through low-cost fast tableting processes is reported. Due to the fast energy transfer from Cs₃ Cu₂ I₅ to MAPbI₃ , the device response time to X-rays is dramatically reduced by nearly 30 times to 36.6 ns, which enables

SUBMITTER: Liu L 

PROVIDER: S-EPMC9130882 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature