A series of Tb³⁺ and Eu³⁺ single- and co-doped Na₃Y(BO₃)₂ (NYB) was prepared by the solid-state reaction method and characterized their structural, thermal and photoluminescence properties while focusing on the development of efficient narrow-band red-emitting phosphors for near-UV chip-based phosphor-converted white LED (pc-WLED). Luminescence spectroscopic and decay kinetics studies of NYB:Tb³⁺, Eu³⁺ sample series demonstrated an occurrence of energy transfer from Tb³⁺ to Eu³⁺ with its efficiency dependent on Eu³⁺ concentration and temperature. The highest quantum yield of 83.5% was observed for NYB:5.0%Tb³⁺, 40%Eu³⁺ composition with excellent thermal stability. The phosphor was finally tested for the use as a red phosphor component in pc-WLED, which demonstrated a high color rendering index of 84.7. The phosphor is a good modelling composition for the development of wider family of narrow-band red-emitting phosphors based on Tb³⁺/Eu³⁺ co-doped inorganic oxides for application in pc-WLED.

通过固相反应法制备了一系列的Tb ³⁺和Eu ³⁺单和共掺杂的Na ₃ Y（BO ₃）₂（NYB），并表征了它们的结构，热和光致发光性能，同时着眼于发展。高效的窄带发红光磷光体，用于基于近紫外芯片的磷光体转换白光LED（pc-WLED）。NYB：Tb ³⁺，Eu ³⁺样品系列的发光光谱和衰变动力学研究表明，发生了从Tb ³⁺到Eu ³⁺的能量转移，其效率取决于Eu ³⁺浓度和温度。对于NYB：5.0％Tb ³⁺，40％Eu ³⁺组成，观察到最高量子产率为83.5％，具有出色的热稳定性。最后测试了该荧光粉在pc-WLED中用作红色荧光粉的成分，该荧光粉显示出84.7的高显色指数。该荧光粉是开发用于PC-WLED的，基于Tb ³⁺ / Eu ³⁺共掺杂无机氧化物的更宽系列窄带发红光荧光粉的良好建模成分。