Journal
ACS OMEGA
Volume 7, Issue 8, Pages 6481-6487Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsomega.1c04710
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Funding
- National Natural Science Foundation of China [12004148]
- PhD early development program of Liaocheng University [318051936]
- Innovation Team of Higher Educational Science and Technology Program in Shandong Province [2019KJA025]
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A novel apatite-based phosphor MgGd4Si3O13:Ce3+, Mn2+ was successfully synthesized and its potential application as a dual-excitation luminescent ratiometric thermometer was studied. The experiment showed that the fluorescent intensity ratio of Ce3+ and Mn2+ was linearly correlated with temperature in a specific range, indicating its high sensitivity as a thermometer.
A novel apatite-based phosphor MgGd4Si3O13[Mg2Gd8(SiO4)(6)O-2]:Ce3+, Mn2+ was designed and successfully synthesized by a solid-state reaction. Based on the different luminescence properties under 298 and 340 nm excitations, its potential application as a dual-excitation luminescent ratiometric thermometer was studied in detail. Under the excitations of 298 and 340 nm, the fluorescent intensity ratio of Ce3+ and Mn2+ is linearly correlated in the temperature range of 303-473 K. The sensitivity showed an opposite trend with the increase of temperature, and the maximum value was 0.95% K-1. These results indicated that MgGd4Si3O13:Ce3+, Mn2+ can be used as an ideal dual-excitation luminescent ratiometric thermometer.
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