A uranyl-based luminescent dosimeter for ultralow-dose tracking of UV and X-ray radiation

Abstract

Herein, we report a novel uranyl-based organic–inorganic hybrid dosimeter, designated as U-OX-PIP. Remarkably, U-OX-PIP exhibits UV/X-ray-induced fluorescence quenching responses, which are characterized by a gradual suppression of the uranyl emission signature. The pronounced fluorescence quenching behavior of U-OX-PIP enables its application as a highly sensitive radiation-responsive material. Furthermore, the identification of radiation-induced C–O˙ radical species establishes U-OX-PIP as an ultrasensitive quenching-type dosimetric material.