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Eu3+配合物的发光具有针状发射峰、大的斯托克斯位移、长荧光寿命以及对温度高度敏感性等特点,这使得它们成为温度探针材料的最佳候选之一。合成了新型可以被可见光激发的Eu3+配合物(Eu-DT),在此基础上分别制备了基于Eu-DT分子和Eu-DT纳米颗粒的温敏薄膜,并对它们的荧光寿命的温度敏感性进行了测试。这两类薄膜的荧光寿命均表现出良好的温度敏感性,特别是基于纳米颗粒的温敏薄膜,由于纳米颗粒基质的保护作用,表现出更高的荧光稳定和温度敏感性。
Eu3 + complexes emit light with acicular emission peaks, large Stokes shifts, long fluorescence lifetime, and high sensitivity to temperature, making them one of the best candidates for temperature probe materials. A novel Eu3 + complex (Eu-DT), which can be excited by visible light, was synthesized. Based on these, the thermo-sensitive films based on Eu-DT and Eu-DT nanoparticles were prepared and their temperature-sensitive fluorescence lifetime taking the test. The fluorescence lifetime of both films shows good temperature sensitivity, especially the temperature-sensitive films based on nanoparticles show higher fluorescence stability and temperature sensitivity due to the protective effect of nanoparticle matrix.