Publication date: 15th December 2025
Strong photon self-absorption severely limits the performance of metal–halide perovskite X-ray scintillators, leading to reduced light extraction and compromised imaging quality at practical thicknesses. Herein, we report an in situ interfacial growth strategy to construct a hybrid ZnS:Ag–FAPbBr₃ nanocrystal (NC) system embedded in a flexible PVDF matrix, enabling efficient, self-absorption-free scintillation under X-ray excitation. Density functional theory (DFT) and ultrafast spectroscopy confirm rapid Förster resonance energy transfer from ZnS:Ag to FAPbBr₃ within ~20 picoseconds, achieving 83% efficiency. The resulting scintillator films exhibit high imaging resolution (20-line pair mm⁻¹) and a remarkably low detection limit (166 nGy s⁻¹), surpassing the medical diagnostic standard by over 30 times. Moreover, the films maintain more than 90% emission after 604.8 Gy continuous exposure, demonstrating excellent radiation durability. This scalable strategy eliminates self-absorption and enhances the stability of FAPbBr₃ NCs, paving the way for robust, high-sensitivity perovskite scintillators for medical, industrial, and underwater X-ray imaging.
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.