High-Performance Copper-Doped Perovskite-Related Silver Halide X-ray Imaging Scintillator
Gutierrez Arzaluz, Luis
Mohammed, Omar F.
KAUST DepartmentAdvanced Membranes and Porous Materials Center (AMPMC) & KAUST Catalysis Center (KCC), Division of Physical Science and Engineering (PSE), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia
Physical Science and Engineering (PSE) Division
Material Science and Engineering Program
KAUST Catalysis Center (KCC)
Chemical Science Program
KAUST Solar Center (KSC)
Advanced Membranes and Porous Materials Research Center
Embargo End Date2023-07-26
Permanent link to this recordhttp://hdl.handle.net/10754/679897
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AbstractScintillators are critical for high-energy radiation detection across a wide array of potential applications, from medical radiography and safety inspections all the way to space exploration. However, constrained by their current shortcomings, including high-temperature and complex fabrication as well as inherent brittleness and fragility among thick films and bulk crystals, traditional scintillators are finding it difficult to meet the rising demand for cost-effective, ecofriendly, and flexible X-ray detection. Here, we describe the development of high-performance and flexible X-ray scintillators based on films of Cu-doped Cs2AgI3 that exhibit ultrahigh X-ray sensitivity. The materials exhibit a high scintillation light yield of up to 82 900 photons/MeV and a low detection limit of 77.8 nGy/s, which is approximately 70 times lower than the dosage for a standard medical examination. Moreover, richly detailed X-ray images of biological tissue and electronic components with a high spatial resolution of 16.2 lp/mm were obtained using flexible, large-area, solution-processed scintillation screens.
CitationHe, T., Zhou, Y., Wang, X., Yin, J., Gutiérrez-Arzaluz, L., Wang, J.-X., Zhang, Y., Bakr, O. M., & Mohammed, O. F. (2022). High-Performance Copper-Doped Perovskite-Related Silver Halide X-ray Imaging Scintillator. ACS Energy Letters, 2753–2760. https://doi.org/10.1021/acsenergylett.2c01484
SponsorsThis work was supported by King Abdullah University of Science and Technology (KAUST).
PublisherAmerican Chemical Society (ACS)
JournalACS Energy Letters