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In situ electrochemical deposition of compact metal-organic framework thin films for high-resolution X-ray imaging
Matter ( IF 17.3 ) Pub Date : 2024-12-20 , DOI: 10.1016/j.matt.2024.11.030 Jian-Xin Wang, Tengjiao He, Osama Shekhah, Luis Gutiérrez-Arzaluz, Esma Ugur, Simil Thomas, Youdong Cheng, Xin Zhu, Hao Jiang, Tengyue He, Lijie Wang, Jiangtao Jia, Stefaan De Wolf, Husam N. Alshareef, Osman M. Bakr, Mohamed Eddaoudi, Omar F. Mohammed
Matter ( IF 17.3 ) Pub Date : 2024-12-20 , DOI: 10.1016/j.matt.2024.11.030 Jian-Xin Wang, Tengjiao He, Osama Shekhah, Luis Gutiérrez-Arzaluz, Esma Ugur, Simil Thomas, Youdong Cheng, Xin Zhu, Hao Jiang, Tengyue He, Lijie Wang, Jiangtao Jia, Stefaan De Wolf, Husam N. Alshareef, Osman M. Bakr, Mohamed Eddaoudi, Omar F. Mohammed
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In the field of X-ray imaging, innovative techniques using continuous screens composed of pure scintillation materials provide promising avenues to achieve high spatial resolution and cost effectiveness while reshaping future X-ray imaging technologies. Here, we present a versatile approach based on in situ electrochemical-directed synthesis for the growth of uniform polycrystalline metal-organic framework (MOF) thin films that are tailored for X-ray imaging. Through this electrochemical process, a series of continuous MOF thin films were successfully synthesized and deposited using interconnected lanthanides as the metal centers and terephthalic acid as the organic linkers. Notably, Tb-terephthalate MOF thin films were revealed as excellent materials that enable ultrahigh-resolution X-ray imaging. This achievement is attributed to improved material density and a significant reduction in light scattering. Remarkably, this MOF thin film surpassed most reported organic and inorganic scintillators, achieving an X-ray imaging resolution of 32 line pairs per millimeter.
更新日期：2024-12-20
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