漫反射光谱显示Br-引入后明显增强了荧光粉在近紫外-紫光区域的吸收。当x=0.6时,该荧光粉在近紫外-紫光激发下具有发光性能优异的蓝光发射,且最佳Eu2+离子掺杂浓度为0.04。
Diffuse reflectance spectra showed that the introduction of Br - significantly enhanced the absorption of phosphors in the near ultraviolet violet region. When x = 0.6, the phosphor has excellent blue emission under near ultraviolet violet excitation, and the optimal Eu2 + ion doping concentration is 0.04.