Intelligent Manufacturing College, Hangzhou Polytechnic, Hangzhou 311402, China.
Shanghai Institute of Laser Plasma, China Academy of Engineering Physics, Shanghai 201800, China.
Molecules. 2023 Jan 11;28(2):729. doi: 10.3390/molecules28020729.
Temperature is an important physical parameter and plays a significant role in scientific research, the detection of which cannot be too crucial to study. In order to reduce the interference of the external environment on the detection of temperature and improve the accuracy of the detection results, a multi-parameter detection method using several optical signals was proposed. Here, a novel porous metal-organic framework (MOF), Zn-CYMPN, was synthesized and structurally characterized. Then, fluorescent organic dyes, either DPEE or DPEM, were encapsulated into the pores of Zn-CYMPN independently. The successful synthesis of the composites Zn-CYMPN⊃DPEE or Zn-CYMPN⊃DPEM could easily introduce other fluorescent centers into the original material and made it more convenient to realize multi-parameter temperature detection. More specifically, when the temperature changed, the maximum fluorescent emission wavelength () and the maximum optical intensity () of the Zn-CYMPN⊃DPEE/DPEM both showed good linear responses with temperature over a wide range, indicating that the composites were highly sensitive thermometers with multi-parameter temperature readouts. In addition, the quantum efficiency and thermal stability of the organic dyes, which bother every researcher, were improved as well.
温度是一个重要的物理参数，在科学研究中起着重要的作用，其检测至关重要。为了降低外部环境对温度检测的干扰，提高检测结果的准确性，提出了一种利用多个光学信号的多参数检测方法。在这里，合成了一种新型的多孔金属有机骨架（MOF）Zn-CYMPN，并对其结构进行了表征。然后，将荧光有机染料 DPEE 或 DPEM 分别包封到 Zn-CYMPN 的孔中。复合材料 Zn-CYMPN&DPEE 或 Zn-CYMPN&DPEM 的成功合成可以很容易地将其他荧光中心引入到原始材料中，并且更方便地实现了多参数温度检测。更具体地说，当温度发生变化时，Zn-CYMPN&DPEE/DPEM 的最大荧光发射波长（）和最大光学强度（）都表现出对宽温度范围内的良好线性响应，表明复合材料是具有多参数温度读数的高灵敏度温度计。此外，还提高了困扰每个研究人员的有机染料的量子效率和热稳定性。
