Flexible X-Ray Detector for Cumulative Dose Monitoring Through Reversible Photochromism and Luminescence Modulation.
- Publisher:
- Wiley
- Publication Type:
- Journal Article
- Citation:
- Adv Sci (Weinh), 2024, pp. e2412986
- Issue Date:
- 2024-12-23
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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 CaAl2Si2O8: Tb3+ ink and flexible film demonstrate high suitability for wearable X-ray detection devices and imaging of irregular objects, offering an innovative approach to X-ray detection and imaging.
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