One-dimensional scintillator film with benign grain boundaries for high-resolution and fast x-ray imaging.

ABSTRACT: Fast and high-resolution x-ray imaging demands scintillator films with negligible afterglow, high scintillation yield, and minimized cross-talk. However, grain boundaries (GBs) are abundant in polycrystalline scintillator film, and, for current inorganic scintillators, detrimental dangling bonds at GBs inevitably extend radioluminescence lifetime and increase nonradiative recombination loss, deteriorating afterglow and scintillation yield. Here, we demonstrate that scintillators with one-dimensional (1D) crystal structure, Cs₅Cu₃Cl₆I₂ explored here, possess benign GBs without dangling bonds, yielding nearly identical afterglow and scintillation yield for single crystals and polycrystalline films. Because of its 1D crystal structure, Cs₅

SUBMITTER: Wu H 

PROVIDER: S-EPMC10381942 | biostudies-literature | 2023 Jul

REPOSITORIES: biostudies-literature