Ensuring nuclear safety has become of great significance as nuclear power is playing an increasingly important role in supplying worldwide electricity. β-ray monitoring is a crucial method, but commercial organic scintillators for β-ray detection suffer from high temperature failure and irradiation damage. Here, we report a type of β-ray scintillator with good thermotolerance and irradiation hardness based on a two-dimensional halide perovskite. Comprehensive composition engineering and doping are carried out with the rationale elaborated. Consequently, effective β-ray scintillation is obtained, the scintillator shows satisfactory thermal quenching and high decomposition temperature, no functionality decay or hysteresis is observed after an accumulated radiation dose of 10 kGy (dose rate 0.67 kGy h). Besides, the two-dimensional halide perovskite β-ray scintillator also overcomes the notorious intrinsic water instability, and benefits from low-cost aqueous synthesis along with superior waterproofness, thus paving the way towards practical application.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7341884 | PMC |
| http://dx.doi.org/10.1038/s41467-020-17114-7 | DOI Listing |
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Article Synopsis
- Thin film photodiodes (TFPD), especially those made from halide perovskites, offer excellent optoelectronic properties, such as high absorption and fast charge transport, making them superior to other thin-film options.
- The study showcases how integrating perovskite photodiodes with silicon read-out integrated circuits (ROIC) enables high-resolution 2D imaging and facilitates 3D imaging through advanced techniques like time-of-flight sensing.
- This development presents a major advancement in TFPD technology, with potential applications in areas such as automotive systems, augmented reality (AR), and virtual reality (VR).
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