Metal-organic frameworks with high photoluminescence quantum yield for X-ray scintillators

IF 2.8 3区物理与天体物理 Q3 CHEMISTRY, PHYSICAL

Radiation Physics and Chemistry Pub Date : 2025-05-11 DOI:10.1016/j.radphyschem.2025.112916

Siqi Yan , Qian Yang , Shuya Zhang , Jiayi Zhang , Tianping Wang , Jia Li , Yanlong Wang , Aiping Jin , Xiaohong Xiong , Xiaoping Ouyang , Hanzhou Liu , Shuao Wang

引用次数: 0

Abstract

Here, we report a Pb-based metal-organic framework, Pb((TPA)DMF)₂·H₂O (denoted as Pb-TPA, where TPA stands for terephthalic acid and DMF for N, N-dimethylformamide), synthesized under mild synthesis conditions (353 K, 3 days), as an X-ray scintillator. Pb-TPA features persistent luminescent centers and an impressive photoluminescence quantum yield of 86.7 %. Over a wide dose rate range 0.97–26.50 Gy min⁻¹ (dose to air), Pb-TPA demonstrates a robust linear response to X-ray radiation with a detection limit of 0.531 μGy s⁻¹. In addition, Pb-TPA exhibits a 60-fold enhancement in detection sensitivity compared to commercial PbWO₄ (PWO) crystals.

查看原文本刊更多论文

用于x射线闪烁体的高光致发光量子产率金属有机骨架

在这里，我们报道了在温和的合成条件下（353 K， 3天）合成的Pb基金属有机骨架Pb((TPA)DMF)2·H2O（表示Pb-TPA，其中TPA代表对苯二甲酸，DMF代表N， N-二甲基甲酰胺）作为x射线闪烁体。Pb-TPA具有持久的发光中心和令人印象深刻的86.7%的光致发光量子产率。在0.97 ~ 26.50 Gy min−1（对空气的剂量）的较宽剂量率范围内，Pb-TPA对x射线辐射具有良好的线性响应，检出限为0.531 μGy s−1。此外，与商用PbWO4 （PWO）晶体相比，Pb-TPA的检测灵敏度提高了60倍。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Radiation Physics and Chemistry 化学-核科学技术

CiteScore

5.60

自引率

17.20%

发文量

574

审稿时长

12 weeks

期刊介绍： Radiation Physics and Chemistry is a multidisciplinary journal that provides a medium for publication of substantial and original papers, reviews, and short communications which focus on research and developments involving ionizing radiation in radiation physics, radiation chemistry and radiation processing. The journal aims to publish papers with significance to an international audience, containing substantial novelty and scientific impact. The Editors reserve the rights to reject, with or without external review, papers that do not meet these criteria. This could include papers that are very similar to previous publications, only with changed target substrates, employed materials, analyzed sites and experimental methods, report results without presenting new insights and/or hypothesis testing, or do not focus on the radiation effects.