介孔稀土氟化物纳米晶体及其光致发光性质。

Mesoporous rare earth fluoride nanocrystals and their photoluminescence properties.

机构信息

College of Chemistry and Environmental Engineering, Changchun University of Science and Technology, Changchun 130022, China.

出版信息

J Colloid Interface Sci. 2011 May 1;357(1):116-20. doi: 10.1016/j.jcis.2011.01.100. Epub 2011 Feb 3.

DOI:10.1016/j.jcis.2011.01.100

PMID:21345447

Abstract

YF(3) and YF(3):Eu(3+) mesoporous hexagonal nanocrystals were successfully synthesized via a simple hydrothermal process based on the in situ assembly of the as-synthesized YF(3) and YF(3):Eu(3+) nanoparticles. The well defined mesoporous nanostructures are formed by phenanthroline assisted assembly of ∼20 nm nanoparticles, and 2-4 nm pores are contained as indicated by N(2) adsorption-desorption studies. The obtained YF(3):Eu(3+) mesoporous hexagonal nanoplates show a significant photoluminescence intensity enhancement compared with other shaped YF(3):Eu(3+) nanocrystals.

摘要

YF(3) 和 YF(3):Eu(3+) 介孔六方纳米晶体通过基于原位组装合成的 YF(3) 和 YF(3):Eu(3+) 纳米粒子的简单水热法成功合成。由~20nm 纳米粒子的菲咯啉辅助组装形成了具有良好定义的介孔纳米结构，通过 N(2)吸附-脱附研究表明存在 2-4nm 的孔。与其他形状的 YF(3):Eu(3+) 纳米晶体相比，所得 YF(3):Eu(3+) 介孔六方纳米板表现出显著的荧光强度增强。