Integrated Multi-Responsive SrMg2Al6Si9O30:Eu2+ Osumilite Glass Ceramic via In Situ Crystallization: A Unified Platform for Smart Optical Applications

Smart multi-stimuli-responsive luminescence materials, which integrate diverse optical functionalities and hold significant promise for cutting-edge optoelectronic applications, have advanced notably in recent years. However, traditional phosphor powders often suffer from instability due to organic binders, limiting their practical utility. This study presents a novel multi-responsive luminescent glass ceramic (GC) based on SrMg 2 Al 6 Si 9 O 30 :Eu 2+ osumilite, developed via an in situ glass crystallization strategy. The material uniquely integrates efficient and stable photoluminescence (PL, quantum yield 76%), persistent luminescence (PersL), thermally stimulated luminescence (TSL), and X-ray-excited radioluminescence (RL, light yield 13 856 photons/MeV) in a single, intrinsically stable matrix. Molecular dynamics simulations reveal that the precursor glass exhibits crystal-like topological configurations, promoting nucleation of the SrMg 2 Al 6 Si 9 O 30 :Eu 2+ phase with a low crystallization activation energy (226.7 kJ/mol). The GC demonstrates exceptional thermal stability and robust performance in applications: high-security anti-counterfeiting via dynamic multi-mode (PL/PersL/TSL) information encoding, and X-ray detection with 8 lp/mm spatial resolution, outperforming commercial scintillators like BGO. These findings establish a new paradigm for designing stable, multi-responsive luminescent materials, paving the way for next-generation integrated optical devices.