DOI: https://doi.org/10.29363/nanoge.emlem.2024.014
Publication date: 13th July 2024
X-ray imaging scintillators are essential in various applications, including medical imaging and security checks. There is a pressing need to develop innovative, environmentally friendly scintillation materials with robust screen fabrication to meet industrial demand and minimize X-ray exposure risks. In this work, we focus on the synthesis and screen fabrication of zero-dimensional manganese hybrid halides with near-unity PLQY emission. We also explored the practical application of Mn(II)-based imaging scintillators for everyday X-ray imaging. Notably, the manganese(II) hybrid bromide scintillators demonstrated an ultrahigh resolution of up to 20.8 lp/mm, surpassing both conventional scintillators and recent alternatives. Additionally, these large-area imaging scintillators achieved a high light yield of 20,000 photons/MeV and an impressively low detection limit of just 180 nGy/s, which is 30 times lower than the typical dose required for medical radiography diagnosis (5.5 µGy/s). Finally, we present compelling evidence of the practicality of using high-resolution Mn(II) hybrid bromide scintillators for X-ray imaging applications.
The authors acknowledge the support of King Abdullah University of Science and Technology (KAUST).
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