Issue 22, 2023

Rational design and synthesis of scintillating lanthanide coordination polymers for highly efficient X-ray imaging

Abstract

Scintillators with high X-ray imaging performance are highly desirable. Traditional inorganic scintillators are restricted by the rigorous preparation conditions and easy deliquescence, while organic scintillators suffered from a low X-ray absorption coefficient and low energy resolution. Metal–organic scintillators were developed to overcome the above-mentioned disadvantages, but they were still limited by the inherent low X-ray attenuation performance of organic ligands and the low energy transfer efficiency between the absorption center and the luminescent center. In this work, two one-dimensional linear lanthanide-based scintillating metal–organic coordination polymers (CPs) were developed by a simple and controllable one-step solvothermal method. High-Z lanthanide atoms could efficiently transform the high-energy X-ray to characteristic visible light via the energy bridge effect of organic ligands, which improved the conversion efficiency to enhance light emission. To evaluate the X-ray imaging performance, scintillating CPs were prepared into thin films, which exhibited relatively high spatial resolution. Considering the good X-ray irradiation stability and humidity stability, the lanthanide scintillating CPs are believed to be very promising materials for X-ray imaging.

Graphical abstract: Rational design and synthesis of scintillating lanthanide coordination polymers for highly efficient X-ray imaging

Supplementary files

Article information

Article type
Paper
Submitted
02 Marts 2023
Accepted
08 Maijs 2023
First published
10 Maijs 2023

J. Mater. Chem. C, 2023,11, 7405-7410

Rational design and synthesis of scintillating lanthanide coordination polymers for highly efficient X-ray imaging

X. Liu, S. Wang, W. Xie, J. Ni, K. Xiao, S. Liu, W. Lv and Q. Zhao, J. Mater. Chem. C, 2023, 11, 7405 DOI: 10.1039/D3TC00761H

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