Abstract The Tb3−xCexAl5O12 (TAG:Ce) phosphors with various cerium doped concentrations were successfully prepared via molten salt (MS) synthesis method using the eutectic mixtures of NaNO2-KNO2 as the flux. Tb3Al5O12 phase can be formed at a temperature as low as 450 °C, but the as-prepared TAG:Ce phosphor with a 250 nm average particle size do not have noticeable emission and excitation spectra. However, after being annealed in a reducing atmosphere at 1100 °C, the phosphor was found to have the same particle size, and more importantly, stronger emission and excitation spectra as well. The results show that the modified MS method provides a feasible approach to produce TAG:Ce phosphor for optoelectronic applications.

中文翻译：

---

Tb 3-x Ce x Al 5 O 12 (TAG:Ce) 磷光体的熔盐合成、表征和发光

摘要 以 NaNO2-KNO2 的共晶混合物为助熔剂，通过熔融盐 (MS) 合成法成功制备了各种铈掺杂浓度的 Tb3−xCexAl5O12 (TAG:Ce) 荧光粉。Tb3Al5O12 相可以在低至 450 °C 的温度下形成，但所制备的平均粒径为 250 nm 的 TAG:Ce 荧光粉没有明显的发射和激发光谱。然而，在 1100 °C 的还原气氛中退火后，发现磷光体具有相同的粒径，更重要的是，发射光谱和激发光谱也更强。结果表明，改进的 MS 方法为生产用于光电应用的 TAG:Ce 荧光粉提供了一种可行的方法。