Abstract
The sensitization of Ho3+ ions by Yb3+ ions has been widely studied in traditional up-conversion luminescence materials and has been reported in many studies. This paper aims to further improve the up-conversion luminescence intensity by doping Mg2+ ions, and this enhancement was analyzed by Judd-Ofelt theory. Using the fluorescence intensity ratio method, temperature sensing performance of the phosphor was observed when the temperature was between 323 K and 523 K. Compared with previously reported materials, this phosphor displays excellent temperature sensitivity. The NaY(MoO4)2: Ho3+/Yb3+/Mg2+ phosphor shows good color purity and high up-conversion luminescence intensity, showing broad application prospects for intense green light generation, optical devices, and temperature sensors.
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