LaPO4:Ce3+、Tb3+纳米粒子及透明LaPO4:Ce3+、Tb3+/PMMA纳米复合材料的原位制备及发光性能

In situ preparation and luminescent properties of LaPO4:Ce3+, Tb3+ nanoparticles and transparent LaPO4:Ce3+, Tb3+/PMMA nanocomposite.

作者信息

Chai Ruitao, Lian Hongzhou, Yang Piaoping, Fan Yong, Hou Zhiyao, Kang Xiaojiao, Lin Jun

机构信息

State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China.

出版信息

J Colloid Interface Sci. 2009 Aug 1;336(1):46-50. doi: 10.1016/j.jcis.2009.03.079. Epub 2009 Apr 8.

DOI:10.1016/j.jcis.2009.03.079

PMID:19406422

Abstract

LaPO(4):Ce(3+), Tb(3+) nanoparticles were prepared by the reverse microemulsion with functional monomer, methyl methacrylate (MMA) as oil phase, and LaPO(4):Ce(3+), Tb(3+)/poly(methyl methacrylate) (PMMA) nanocomposite was obtained via polymerization of MMA monomer. The nanoparticles and nanocomposite have been well characterized by XRD, SEM, TEM, UV/vis spectrum, photoluminescence excitation and emission spectra and luminescence decays. The obtained solid nanocomposite LaPO(4):Ce(3+), Tb(3+)/PMMA is highly transparent and exhibits strong green photoluminescence upon UV excitation, due to the integration of luminescent LaPO(4):Ce(3+), Tb(3+) nanoparticles. The luminescent lifetime of Tb(3+) is determined to be 1.25 ms in the nanocomposite.

摘要

以甲基丙烯酸甲酯（MMA）为油相，通过反相微乳液法制备了LaPO(4):Ce(3+), Tb(3+)纳米粒子，并通过MMA单体聚合得到了LaPO(4):Ce(3+), Tb(3+)/聚甲基丙烯酸甲酯（PMMA）纳米复合材料。通过XRD、SEM、TEM、紫外可见光谱、光致发光激发和发射光谱以及发光衰减对纳米粒子和纳米复合材料进行了充分表征。所制备的固体纳米复合材料LaPO(4):Ce(3+), Tb(3+)/PMMA具有高透明度，并且由于发光LaPO(4):Ce(3+), Tb(3+)纳米粒子的整合，在紫外激发下呈现出强烈的绿色光致发光。在纳米复合材料中，Tb(3+)的发光寿命测定为1.25毫秒。