Improving X-ray Scintillating Merits of Zero-Dimensional Organic–Manganese(II) Halide Hybrids via Enhancing the Ligand Polarizability for High-Resolution Imaging

作者：Jian Lü, Juan Gao, Shuai‐Hua Wang, Mei‐Juan Xie, Baoyi Li, Wen-Fei Wang, Jia-Rong Mi, Fa‐Kun Zheng, Guo‐Cong Guo · 发表于：Nano Letters · 年份：2023 · DOI：10.1021/acs.nanolett.3c00503 · 被引用次数：81 · 研究领域：Lanthanide and Transition Metal Complexes、Atomic and Subatomic Physics Research、Medical Imaging Techniques and Applications

Luminescent metal halides have been exploited as a new class of X-ray scintillators for security checks, nondestructive inspection, and medical imaging. However, the charge traps and hydrolysis vulnerability are always detrimental to the three-dimensional ionic structural scintillators. Here, the two zero-dimensional organic-manganese(II) halide coordination complexes 1-Cl and 2-Br were synthesized for improvements in X-ray scintillation. The introduction of a polarized phosphine oxide can help to increase the stabilities, especially the self-absorption-free merits of these Mn-based hybrids. The X-ray dosage rate detection limits reached up to 3.90 and 0.81 μGy air /s for 1-Cl and 2-Br, respectively, superior to the medical diagnostic standard of 5.50 μGy air /s. The fabricated scintillation films were applied to radioactive imaging with high spatial resolutions of 8.0 and 10.0 lp/mm, respectively, holding promise for use in diagnostic X-ray medical imaging.