Inner Mongolia Normal University, College of Chemistry and Environmental Science, Hohhot, China.
Luminescence. 2020 Feb;35(1):114-119. doi: 10.1002/bio.3704. Epub 2019 Aug 29.
Eu -doped 6LaPO -3La PO -2La P O red luminescent phosphors were synthesized by co-deposition and high-temperature solid-state methods and its polyphase state was confirmed by X-ray diffraction analysis. Transmission electron microscopy showed the grain morphology as a mixture of rods and spheres. Luminescence properties of the phosphor were investigated and its red emission parameters were evaluated as a function of Eu concentration (3.00-6.00 mol%). Excitation spectra of 6LaPO -3La PO -2La P O :Eu showed strong absorption bands at 280, 395, and 466 nm, while the luminescence spectra exhibited prominent red emission peak centred at 615 nm ( D → F ) in the red region. CIE chromaticity coordinates of the 6LaPO -3La PO -2La P O :5%Eu phosphor were (0.668, 0.313) in the red region, and defined its potential application as a red phosphor.
Eu 掺杂的 6LaPO 3La PO 2LaPO 红色荧光粉通过共沉淀和高温固相法合成，并通过 X 射线衍射分析确认其多相状态。透射电子显微镜显示出棒状和球状混合物的晶粒形态。研究了荧光粉的发光性能，并评估了其红色发射参数作为 Eu 浓度（3.00-6.00 mol%）的函数。6LaPO 3La PO 2LaPO：Eu 的激发光谱在 280、395 和 466nm 处显示出强吸收带，而发光光谱在红色区域显示出位于 615nm（D→F）处的显著红色发射峰。6LaPO 3La PO 2LaPO：5%Eu 荧光粉的 CIE 色度坐标为（0.668，0.313），位于红色区域，表明其在红色荧光粉方面具有潜在的应用前景。
