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Abstract Readily commercializable and cost‐effective next‐generation CsPbBr 3 perovskite nanocrystals (PNCs) based X‐ray detectors are demonstrated. The PNCs‐based X‐ray detector exhibits higher spatial resolution (9.8 lp mm −1 at modulation transfer function (MTF) = 0.2 and 12.5–8.9 lp mm −1 for a linear line chart), faster response time (≈200 ns), and comparable stability (>40 Gy air s −1 of X‐ray exposure) compared with the commercialized terbium‐doped gadolinium oxysulfide (GOS)‐based detectors (spatial resolution = 6.2 lp mm −1 at MTF = 0.2 and 6.3 lp mm −1 for a linear line chart, response time = ≈1200 ns) because the PNCs‐based scintillator has ≈5.6‐fold faster average photoluminescence lifetime and stronger emission than the GOS‐based one.
Heo et al. (Thu,) studied this question.
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