Abstract
NaGd(1-x-y)TbxEuySiO4 phosphors were synthesized through high-temperature solid-state reaction method. The effects of doping concentration and temperature of Tb3+ and Eu3+ doped NaGdSiO4 on the luminescence performance are investigated in detail. Eu3+ luminous intensity enhancement and excitation spectra expansion are realized through efficient energy transfer of Tb3+ → Eu3+. The luminous color is regulated from green to red by altering the concentration of Tb3+ and Eu3+. The temperature measurement performance of the NaGd0.85Tb0.1Eu0.05SiO4 phosphor has also been witnessed. In the temperature range of 273 K − 483 K, the maximum absolute and relative sensitivity are 0.008 K−1 and 0.533%K−1, respectively. It is evident that NaGd(1-x-y)TbxEuySiO4 phosphors are available for temperature measurement.
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