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High-resolution flexible X-ray luminescence imaging enabled by eco-friendly CuI scintillators.

ABSTRACT: Solution-processed scintillators hold great promise in fabrication of low-cost X-ray detectors. However, state of the art of these scintillators is still challenging in their environmental toxicity and instability. In this study, we develop a class of tetradecagonal CuI microcrystals as highly stable, eco-friendly, and low-cost scintillators that exhibit intense radioluminescence under X-ray irradiation. The red broadband emission is attributed to the recombination of self-trapped excitons in CuI microcrystals. We demonstrate the incorporation of such CuI microscintillator into a flexible polymer to fabricate an X-ray detector for high-resolution imaging with a spatial resolution up to 20 line pairs per millimeter (lp mm^-1), which enables sharp image effects by attaching the flexible imaging detectors onto curved object surfaces.

SUBMITTER: Hong Z

PROVIDER: S-EPMC9659724 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature

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High-resolution flexible X-ray luminescence imaging enabled by eco-friendly CuI scintillators.

Hong Zhongzhu Z Luo Peifu P Wu Tingting T Wu Qinxia Q Chen Xiaoling X Yang Zhijian Z Dai Shuheng S Jiang Hao H Chen Qihao Q Sun Qiang Q Xie Lili L

Frontiers in chemistry 20221031

Solution-processed scintillators hold great promise in fabrication of low-cost X-ray detectors. However, state of the art of these scintillators is still challenging in their environmental toxicity and instability. In this study, we develop a class of tetradecagonal CuI microcrystals as highly stable, eco-friendly, and low-cost scintillators that exhibit intense radioluminescence under X-ray irradiation. The red broadband emission is attributed to the recombination of self-trapped excitons in Cu ...[more]

PMID: 36385989

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