两种形貌GdPO_4纳米粒子的制备和光学性质研究

以Gd2O3、H3PO4为原料,聚乙二醇(PEG)为结构导向剂,通过改变沉淀剂NaOH的用量,制备了棒状、丝状的GdPO4纳米粒子,用X射线衍射仪(XRD)、X射线能量扩散光谱仪(EDS)、透射电子显微镜(TEM)、X射线光电子能谱仪(XPS)、富里叶变换红外光谱仪(FT-IR)对样品进行表征,研究了样品的激光拉曼散射光谱(Raman)、光致发光(PL)性质。结果表明,两种不同形貌的GdPO4纳米粒子具有不同的光学活性,PEG的浓度以及它和Gd3+、H+的配位作用对棒状GdPO4纳米粒子的形成有重要的影响。

Preparation and optical properties of two different morphology GdPO_4 nanoparticles

Nanorods and nanowires GdPO_4 have been prepared by using Gd_2O_3,H_3PO_4and NaOH in polygol (PEG) solution.These nanostructures were characterized by X-ray diffraction (XRD),X-ray energy dispersive spectroscopy (EDS),Transmission electron microscopy (TEM),X-ray photoelectron spectrometer (XPS),Fourier transform infrared (FT-IR) spectrometer,Laser Raman scattered spectrometer (Raman).The results indicated that the two different morphology has different optical performance.The affinity of the oxygen atoms in PEG chains for Gd~(3+) and H~+ existing in the solution plays an important role in the formation of the GdPO4nanorods.