Experimental study demonstrates high spatial resolution and sensitivity in a lead-free copper(I) iodide scintillator, highlighting potential for safer medical and industrial X-ray imaging.
Lead‐free scintillators are highly desirable for flexible X‐ray imaging screens, yet they suffer from high cost, low resolution, and poor environmental compatibility. Herein, a novel organic–inorganic hybrid copper(I) iodide scintillator (C 18 H 15 P) 2 CuIC 5 H 6 N 2 is synthesized via a facile cooling crystallization method. The compound exhibits intense blue‐violet emission with a photon yield of 16 028 photons MeV − 1 and a low detection limit of 85.588 nGy s − 1 . A flexible scintillator film is further fabricated by the vacuum suction filtration method, delivering a record spatial resolution of 15.4 lp mm − 1 among copper‐based halide scintillators. This work provides a new paradigm for developing high‐performance lead‐free X‐ray scintillators toward medical imaging and industrial inspection.
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Shu et al. (2026) studied this question.
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