Flexible X-Ray Detector for Cumulative Dose Monitoring Through Reversible Photochromism and Luminescence Modulation.

ABSTRACT: This study presents a multi-mode X-ray detection and imaging strategy by integrating photochromism, photoluminescence, and radioluminescence into Tb³⁺-doped CaAl₂Si₂O₈. CaAl₂Si₂O₈: Tb³⁺ exhibits stable radioluminescence, oxygen vacancy-related photochromism, and photoluminescence modulation, all of which showed a linear relationship with X-ray exposure. This multi-mode response enables high-quality imaging and detection in both bright and dark conditions, facilitating time-dependent cumulative X-ray radiation dose assessments. Reversible color and luminescence changes are achieved through cyclic tests involving alternating X-ray and 473 nm laser irradiation. The PDMS CaAl₂Si₂O

SUBMITTER: Bai X 

PROVIDER: S-EPMC11809380 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature