Abstract A series of BaY2(MoO4)4:Eu3+,Tb3+ phosphors were synthesized by solid state reaction. The phase purity, crystal structure and photoluminescence properties were identified by X-ray diffraction, SEM, DRS, excitation and emission spectra, and luminescence decay curves. The emission color can be tuned from green to yellow and then to red by changing the concentration ratio of Eu3+ and Tb3+ under near-UV excitation. The energy transfer processes between Eu3+ and Tb3+ ions were investigated on the basis of emission spectra under different excitation wavelength. BaY2(MoO4)4:Tb3+,Eu3+ phosphors exhibited high temperature sensing performance in the temperature range of 89–293 K with maximum absolute sensitivity of 6.02% K−1 and relative sensitivity of 1.06% K−1. The fabricated LEDs presented good performance in the light emitting field with low CCT of 3875 K and high Ra of 82.1 lm/W.

中文翻译：

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BaY2(MoO4)4:Tb3+,Eu3+ 荧光粉中的发光和能量转移以及在测温和发光二极管中的双功能应用

摘要 通过固相反应合成了一系列BaY2(MoO4)4:Eu3+,Tb3+荧光粉。通过X射线衍射、SEM、DRS、激发和发射光谱以及发光衰减曲线鉴定相纯度、晶体结构和光致发光特性。通过在近紫外激发下改变 Eu3+ 和 Tb3+ 的浓度比，可以将发射颜色从绿色调到黄色，然后再调到红色。基于不同激发波长下的发射光谱研究了Eu3+和Tb3+离子之间的能量转移过程。BaY2(MoO4)4:Tb3+,Eu3+ 荧光粉在 89-293 K 的温度范围内表现出高温传感性能，最大绝对灵敏度为 6.02% K-1，相对灵敏度为 1.06% K-1。