Li[Formula: see text]Nb[Formula: see text]Ti[Formula: see text]O3: Eu[Formula: see text] luminescent ceramics were prepared by the solid-state reaction method. By means of XRD, SEM, density testing, and fluorescence spectra data, the luminescent ceramics were characterized as functions of Eu[Formula: see text] concentration and sintering temperature. With the increase of sintering temperature and Eu[Formula: see text] concentration, the peak intensities of the PLE spectra monitored at 612[Formula: see text]nm and PL spectra excited at 396[Formula: see text]nm were dramatically improved. Li[Formula: see text]Nb[Formula: see text]Ti[Formula: see text]O3: 3[Formula: see text]wt.%Eu[Formula: see text] ceramics sintered at 1120∘C showed the highest PL intensity. The emission spectra showed orange emission at 592[Formula: see text]nm and red emission at 612[Formula: see text]nm, corresponding to the transition of 5D[Formula: see text]F1 and 5D[Formula: see text]F2 of Li[Formula: see text]Nb[Formula: see text]Ti[Formula: see text]O3: Eu[Formula: see text] ceramics.

中文翻译：

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Li2.06Nb0.18Ti0.76O3:Eu3+陶瓷的合成与发光

Li[公式：见正文]Nb[公式：见正文]Ti[公式：见正文]O3：Eu[分子式：见正文] 采用固相反应法制备发光陶瓷。通过XRD、SEM、密度测试和荧光光谱数据，将发光陶瓷表征为Eu[公式：见正文]浓度和烧结温度的函数。随着烧结温度和Eu[公式：见正文]浓度的增加，在612[公式：见正文]nm处监测的PLE光谱和在396[公式：见正文]nm激发的PL光谱的峰强度显着提高。Li[公式：见正文]Nb[公式：见正文]Ti[公式：见正文]O3: 3[公式：见文]wt.%Eu[公式：见文]陶瓷在1120烧结∘C 显示最高的 PL 强度。发射光谱在 592[公式：见文本]nm 处显示橙色发射，在 612[公式：见文本]nm 处显示红色发射，对应于5D[公式：见正文]F1和5D[公式：见正文]F2Li[公式：见正文]Nb[公式：见正文]Ti[公式：见正文]O3：Eu[公式：见正文]陶瓷。