Zhao Xiao-Fei, E Namila, Wang Xi-Gui
College of Chemistry and Environmental Science, Inner Mongolia Normal University, Hohhot, China.
Luminescence. 2022 Sep;37(9):1446-1454. doi: 10.1002/bio.4316. Epub 2022 Jul 13.
Eu and/or Sm -doped CaMoO phosphors were prepared using a hydrothermal method. The X-ray diffraction (XRD) results show that the sample is in a tetragonal CaMoO phase, the space group is I41/a (88), the lattice constants are a = b = 5.226 Å, c = 11.430 Å, and V = 312.2 Å . We explored the effects of Eu doping concentration, reaction temperature, preparation time, and the energy transfer relationship between Eu and Sm on the phosphors. The Commission Internationale de l'éclairage (CIE) calculation results indicated that under excitation by ultraviolet light at 283 nm, the CIE coordinates of some CaMoO :Eu /Sm materials are located in the near-white light region, and could be used as potential candidates for single-matrix white phosphors.
采用水热法制备了铕（Eu）和/或钐（Sm）掺杂的钼酸钙（CaMoO）荧光粉。X射线衍射（XRD）结果表明，样品为四方相CaMoO，空间群为I41/a（88），晶格常数a = b = 5.226 Å，c = 11.430 Å，晶胞体积V = 312.2 Å 。我们研究了Eu掺杂浓度、反应温度、制备时间以及Eu和Sm之间的能量转移关系对荧光粉的影响。国际照明委员会（CIE）计算结果表明，在283 nm紫外光激发下，一些CaMoO:Eu/Sm材料的CIE坐标位于近白光区域，可作为单基质白色荧光粉的潜在候选材料。
