A series of emission‐tunable Na_1−xAl_1+2xSi_1−2xO₄:xBi³⁺/Eu³⁺ phosphors were synthesized via high temperature solid‐state reaction method. The luminescence properties, energy transfer from Bi³⁺ to Eu³⁺ ions, color tuning, thermal stability and quantum efficiency were systematically investigated. Especially, in the host, a certain amount of Si⁴⁺ were replaced by Al³⁺ in order to remedy the charge compensating defect, so that, the emission intensity had been improved. The results of Rietveld refinements, the analysis of SEM mapping and the fourier transform infrared (FT‐IR) indicated that this charge balance strategy was an effective method. Meanwhile, the energy transfer from Bi³⁺ to Eu³⁺ can be inferred and confirmed and the mechanisms were demonstrated to quadrupole–quadrupole interaction. The emission hue can be tuned from blue to pink, and finally to orange red light by properly varying the ratio of Bi³⁺ and Eu³⁺. Importantly, when the temperature was raised to 150°C, the integrated emission intensity was 71.20% of the initial value for NAS:1%Bi³⁺,2%Eu³⁺ samples indicating that these phosphors had excellent thermal stability and stable color (no emission shift). All these properties indicate that the developed phosphors may be potentially used as single‐component color‐tunable‐emitting phosphors for UV light‐emitting diodes.

中文翻译：

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通过能量转移获得新的单组分多色发射Na1-xAl1 + 2xSi1-2-2xO4：xBi3 + / Eu3 +荧光粉

通过高温固相反应法合成了一系列可调节发射的Na _1-x Al _{1 + 2x} Si _1-2x O ₄：xBi ³⁺ / Eu ³⁺荧光粉。系统地研究了发光性质，从Bi ³⁺到Eu ³⁺离子的能量转移，颜色调节，热稳定性和量子效率。特别是在主体中，一定量的Si ⁴⁺被Al ³⁺代替为了弥补电荷补偿缺陷，提高了发射强度。Rietveld改进的结果，SEM映射分析和傅立叶变换红外（FT-IR）表明，这种电荷平衡策略是一种有效的方法。同时，可以推断和确认从Bi ³⁺到Eu ³⁺的能量转移，并证明了四极-四极相互作用的机理。通过适当地改变Bi ³⁺和Eu ³⁺的比例，可以将发射色从蓝色调到粉红色，最后调到橙红色。重要的是，当温度升至150°C时，NAS的综合发射强度为初始值的71.20％：1％Bi ³⁺，2％Eu^{3个以上的}样品表明这些荧光粉具有出色的热稳定性和稳定的颜色（无发射位移）。所有这些特性表明，开发的磷光体有可能被用作紫外线发光二极管的单组分可调光发射磷光体。