Hefei National Laboratory for Physical Sciences at the Microscale, Hefei, PR China.
Spectrochim Acta A Mol Biomol Spectrosc. 2010 Jan;75(1):8-13. doi: 10.1016/j.saa.2009.05.014. Epub 2009 May 22.
Y(2)O(3):Eu(3+) nano-powders were synthesized by homogeneous precipitation and the influence of solution acidity was investigated. IR and TG-DTA analysis showed that in different acidic solutions different kinds of sediments were generated. TEM images revealed distinct morphologies of obtained powders. The resultant powders were sintered into ceramics in vacuum and then in N(2) atmosphere without any additives. SEM images indicated that the morphologies of powders have significant impact on the microstructures of sintering-derived ceramics. Low-agglomerated and uniform powders were in favor of production of ceramics with homogeneous microstructures. Excitation and emission spectra of both powders and ceramics were measured and some changes were observed.
Y(2)O(3):Eu(3+) 纳米粉末通过均相沉淀法合成，并研究了溶液酸度的影响。IR 和 TG-DTA 分析表明，在不同的酸性溶液中会生成不同种类的沉淀物。TEM 图像显示了所得粉末的不同形貌。所得粉末在真空和 N(2)气氛中烧结成陶瓷，无需任何添加剂。SEM 图像表明，粉末的形态对烧结陶瓷的微观结构有显著影响。低团聚和均匀的粉末有利于制备具有均匀微观结构的陶瓷。测量了粉末和陶瓷的激发和发射光谱，并观察到一些变化。
