Luo Jun-Ming, Deng Li-Ping
School of Materials Science and Engineering, Nanchang Hangkong University, Nanchang 330063, China.
J Nanosci Nanotechnol. 2010 Mar;10(3):1924-7.
Y2O3 nanoparticles doped with different concentrations of Nd3+ were prepared by the coprecipitation method, and the Nd3+:Y2O3 transparent ceramics were fabricated by vacuum sintering at 1700 degrees C, under 1 x 10(-3) Pa for 6 h. The structural, morphological, and luminescence properties of the samples were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM) and fluorescence analysis. The results show that the Nd3+:Y2O3 nanoparticles are homogeneous in size and nearly spherical, and the average diameter of the particles is in the range of 40-60 nm. There are no other phases except the Y2O3 cubic phase in the Nd3+:Y2O3 nanoparticles and transparent ceramics. Nd3+ dissolves completely in the Y2O3 cubic phase. The relative density of Nd3+:Y2O3 transparent ceramics is 99.7%, and the transmittance of the Nd3+:Y2O3 transparent ceramics exceeds 80% at the wavelength range.
采用共沉淀法制备了不同浓度Nd3+掺杂的Y2O3纳米粒子，并在1×10(-3) Pa、1700℃下真空烧结6 h制备了Nd3+:Y2O3透明陶瓷。通过X射线衍射(XRD)、透射电子显微镜(TEM)、扫描电子显微镜(SEM)和荧光分析对样品的结构、形貌和发光性能进行了表征。结果表明，Nd3+:Y2O3纳米粒子尺寸均匀，近似球形，平均粒径在40-60 nm范围内。Nd3+:Y2O3纳米粒子和透明陶瓷中除Y2O3立方相外无其他相。Nd3+完全溶解在Y2O3立方相中。Nd3+:Y2O3透明陶瓷的相对密度为99.7%，在该波长范围内Nd3+:Y2O3透明陶瓷的透过率超过80%。
