期刊
INORGANIC CHEMISTRY FRONTIERS
卷 8, 期 15, 页码 3760-3766出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d1qi00588j
关键词
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资金
- National Natural Science Foundation of China [21571162]
The study focused on developing composite phosphors of CYPO:Ce3+,Mn2+/g-C3N4 with different proportions for highly sensitive optical-temperature measurement. Through X-ray powder diffraction and fluorescence spectroscopy, it was found that the composite phosphors exhibited better temperature-dependent properties compared to pure CYPO:Ce3+,Mn2+. The maximum absolute and relative sensitivities of the designed composite phosphors were determined based on FIR technology, providing a feasible idea for versatile applications in optical-temperature measurement.
Measurement of the optical temperature based on fluorescence intensity ratio (FIR) technology is a promising research direction owing to a rapid response performance that is undisturbed by external circumstances. The composite phosphors of Ca9Y(PO4)(7):0.05Ce(3+),0.05Mn(2+) and g-C3N4 (CYPO:Ce3+,Mn2+/g-C3N4) with different proportions were prepared by mechanical mixing. Thermometric properties were explored for application in highly sensitive optical-temperature measurement. The properties of composite phosphors were analyzed by X-ray powder diffraction and fluorescence spectroscopy. Compared with pure CYPO:Ce3+,Mn2+, the composite phosphors of CYPO:Ce3+,Mn2+/g-C3N4 showed better temperature-dependent properties. The maximum absolute and relative sensitivities of the designed composite phosphors were 0.11 K-1 at 447 K and 1.673% K-1 at 547 K based on the FIR. This work provides a feasible idea for optical-temperature measurement by exploring the diverse photoluminescence behaviors of the CYPO:Ce3+,Mn2+ and g-C3N4 to realize versatile applications.
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