Title: Water/Alcohol-Processable Sustainable Radiation ScintillatorsSummary: Advancing next-generation X-ray scintillator detectors with enhanced sensitivity and resolution is critical for healthcare, security, and related fields. Currently commercial solutions rely on inorganic crystals, which require high-temperature and vacuum processing, doping with toxic elements such as Thallium (Tl), and present significant challenges in achieving high-resolution patterning due to their rigidity and brittleness. Alternatives are petroleum-derived polymers, but they exhibit inadequate X-ray attenuation and require toxic lead (Pb) doping to enhance performance. Herein, we propose addressing these limitations by developing a versatile and sustainable organic/hybrid molecular glass material platform, leveraging: 1) low-cost, non-toxic organobismuth complexes combined with bright lumiphores to form water/alcohol-soluble nanodots for sensitive X-ray detection, and 2) wood-based cellulose derivatives as embedding matrices engineered for mechanical durability, optical transparency, and sub-μm patternability. These unique nanodot-cellulose composites will exhibit significantly improved radioluminescence, which can be processed based on water/alcohol solutions at low-temperature (<100 °C), essential for scalable, eco-friendly manufacturing. By synergizing materials science, X-ray physics, optics, and nanofabrication, our multidisciplinary platform will bridge lab-based research and industrial prototype development, aligning with global sustainability objectives for future advanced X-ray detection technologies.
