Abstract In this work, a new Eu and Tb co-doped luminescent compound based on MOF-5, [Zn4O(BDC)3], (named as compound 1) was successfully synthesized. The structure and morphology characterizations demonstrate that the initial framework of MOF-5 is retained well after co-doping Eu and Tb. The systematic investigations of photoluminescence behaviors reveal that the heat-treated compound 1 (called as compound 1a) can be utilized as a multi-channel readout luminescent thermometer in emission intensity ratio, decay time ratio, and luminescence color. It simultaneously exhibits the excellent repetitiveness and reversibility under high temperature region from 303 to 473 K. The relative sensitivity of 1.8%/K at 473 K is much higher than the best one of 1.19%/K previously reported for the mixed-lanthanide MOF Tb0.8Eu0.2BPDA. Until now, such a ratiometric luminescent thermometer with a high sensitivity at the temperature as high as 473 K has been rarely explored.

中文翻译：

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用于比例高温传感的 Eu 和 Tb 共掺杂 MOF-5 化合物

摘要 本工作成功合成了一种基于MOF-5的新型Eu和Tb共掺杂发光化合物[Zn4O(BDC)3](化合物1)。结构和形态表征表明，在共掺杂 Eu 和 Tb 后，MOF-5 的初始框架得以很好地保留。光致发光行为的系统研究表明，经过热处理的化合物 1（称为化合物 1a）可用作多通道读出发光温度计的发射强度比、衰减时间比和发光颜色。它同时在 303 到 473 K 的高温范围内表现出优异的重复性和可逆性。 在 473 K 下的相对灵敏度为 1.8%/K，远高于先前报道的混合镧系元素 MOF Tb0 的最佳灵敏度 1.19%/K .8Eu0.2BPDA。到现在，