Exciton-harvesting enabled efficient charged particle detection in zero-dimensional halides.

ABSTRACT: Materials for radiation detection are critically important and urgently demanded in diverse fields, starting from fundamental scientific research to medical diagnostics, homeland security, and environmental monitoring. Low-dimensional halides (LDHs) exhibiting efficient self-trapped exciton (STE) emission with high photoluminescence quantum yield (PLQY) have recently shown a great potential as scintillators. However, an overlooked issue of exciton-exciton interaction in LDHs under ionizing radiation hinders the broadening of its radiation detection applications. Here, we demonstrate an exceptional enhancement of exciton-harvesting efficiency in zero-dimensional (0D) Cs₃Cu₂I₅:Tl halide single crystals by forming strongly localized Tl-bound excitons. Because

SUBMITTER: Wang Q 

PROVIDER: S-EPMC11322634 | biostudies-literature | 2024 Aug

REPOSITORIES: biostudies-literature