High Performance Dynamic X-ray Flexible Imaging Realized Using a Copper Iodide Cluster-Based MOF Microcrystal Scintillator |
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Authors: | Qiu-Chen Peng Dr. Yu-Bing Si Jia-Wang Yuan Qi Yang Zi-Ying Gao Dr. Yuan-Yuan Liu Dr. Zhao-Yang Wang Dr. Kai Li Prof. Shuang-Quan Zang Prof. Ben Zhong Tang |
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Affiliation: | 1. Henan Key Laboratory of Crystalline Molecular Functional Materials, Henan International Joint Laboratory of Tumor Theranostic Cluster Materials, Key Laboratory of Special Environmental Functional Materials (Zhengzhou University), Ministry of Education, Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou, 450001 China;2. School of Science and Engineering, Shenzhen Institute of Aggregate Science and Technology, The Chinese University of Hong Kong, Shenzhen, 518172 China |
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Abstract: | X-ray imaging technology has achieved important applications in many fields and has attracted extensive attentions. Dynamic X-ray flexible imaging for the real-time observation of the internal structure of complex materials is the most challenging type of X-ray imaging technology, which requires high-performance X-ray scintillators with high X-ray excited luminescence (XEL) efficiency as well as excellent processibility and stability. Here, a macrocyclic bridging ligand with aggregation-induced emission (AIE) feature was introduced for constructing a copper iodide cluster-based metal–organic framework (MOF) scintillator. This strategy endows the scintillator with high XEL efficiency and excellent chemical stability. Moreover, a regular rod-like microcrystal was prepared through the addition of polyvinyl pyrrolidone during the in situ synthesis process, which further enhanced the XEL and processibility of the scintillator. The microcrystal was used for the preparation of a scintillator screen with excellent flexibility and stability, which can be used for high-performance X-ray imaging in extremely humid environments. Furthermore, dynamic X-ray flexible imaging was realized for the first time. The internal structure of flexible objects was observed in real time with an ultrahigh resolution of 20 LP mm−1. |
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Keywords: | Aggregation-Induced Emission Copper-Iodide Cluster MOFs Scintillator X-Ray Flexible Imaging |
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