Publication date: 8th July 2026
Organic-inorganic metal halide glasses (OIMHGs) are promising materials for high-resolution X-ray imaging due to their transparency and tunable properties. However, their practical applications are severely limited by a transition from the glassy state to a polycrystalline phase under ambient conditions, leading to significant optical and performance degradation. Herein, we systematically investigated the underlying mechanism of the rapid glass-to-crystal transition in methyltriphenylphosphonium-based hybrid materials (MTP)2MnBr4 through X-ray absorption fine structure (XAFS) measurements, X-ray scattering analysis, and ab initio molecular dynamics simulations. For the first time, we demonstrated that this transition is driven by the water molecules, which significantly influence the spatial arrangement of the organic (MTP+) and inorganic ([MnBr4]2−) components within the materials framework. To address the severe instability of this X-ray imaging glass in air, we developed a novel composite encapsulation strategy that integrates quartz glass layers with a waterproof parylene polymer coating. Consequently, the glass-to-crystal transition was substantially suppressed, enhancing the stability of the synthesized glass by over 100 times. This improvement enabled the material to maintain a spatial resolution of 26.3 lp mm-1 for more than twelve months. These findings underscore the critical role of environmental stability strategies in enhancing OIMHG-based scintillators for next-generation X-ray imaging applications.
Y.W., Y.X., and X.Z. contributed equally to this work. This work was supported by the King Abdullah University of Science and Technology (KAUST). The Shaheen of KAUST is acknowledged for providing computational resources.
nanoGe is a prestigious brand of successful science conferences that are developed along the year in different areas of the world since 2009. Our worldwide conferences cover cutting-edge materials topics like perovskite solar cells, photovoltaics, optoelectronics, solar fuel conversion, surface science, catalysis and two-dimensional materials, among many others.
Previously nanoGe Spring Meeting (NSM) and nanoGe Fall Meeting (NFM), MATSUS is a multiple symposia conference focused on a broad set of topics of advanced materials preparation, their fundamental properties, and their applications, in fields such as renewable energy, photovoltaics, lighting, semiconductor quantum dots, 2-D materials synthesis, charge carriers dynamics, microscopy and spectroscopy semiconductors fundamentals, etc.
International Conference on Hybrid and Organic Photovoltaics
International Conference on Hybrid and Organic Photovoltaics (HOPV) is celebrated yearly in May. The main topics are the development, function and modeling of materials and devices for hybrid and organic solar cells. The field is now dominated by perovskite solar cells but also other hybrid technologies, as organic solar cells, quantum dot solar cells, and dye-sensitized solar cells and their integration into devices for photoelectrochemical solar fuel production.
Asia-Pacific International Conference on Perovskite, Organic Photovoltaics and Optoelectronics
The main topics of the Asia-Pacific International Conference on Perovskite, Organic Photovoltaics and Optoelectronics (IPEROP) are discussed every year in Asia-Pacific for gathering the recent advances in the fields of material preparation, modeling and fabrication of perovskite and hybrid and organic materials. Photovoltaic devices are analyzed from fundamental physics and materials properties to a broad set of applications. The conference also covers the developments of perovskite optoelectronics, including light-emitting diodes, lasers, optical devices, nanophotonics, nonlinear optical properties, colloidal nanostructures, photophysics and light-matter coupling.
The International Conference on Perovskite Thin Film Photovoltaics Perovskite Photonics and Optoelectronics (NIPHO) is the best place to hear the latest developments in perovskite solar cells as well as on recent advances in the fields of perovskite light-emitting diodes, lasers, optical devices, nanophotonics, nonlinear optical properties, colloidal nanostructures, photophysics and light-matter coupling.