Role of organic molecules on upconversion luminescence of LaF3 nanoparticles

被引：19

作者：

Qu, Yuqiu ^{[1
,2
]}

Yu, Yi ^{[1
]}

Kong, Xianggui ^{[1
]}

Sun, Yajuan ^{[1
]}

Zeng, Qinghui ^{[1
]}

Zhang, Hong ^{[3
]}

机构：

[1] Chinese Acad Sci, Changchun Inst Opt Fine Mech & Phys, Changchun 130033, Peoples R China

[2] Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China

[3] Univ Amsterdam, Vant Hoff Inst Mol Sci, NL-1012 WX Amsterdam, Netherlands

来源：

MATERIALS LETTERS | 2009年 / 63卷 / 15期

关键词：

Nanomaterials; Optical materials and properties; Phosphor; Surface; LANTHANIDE IONS; NANOCRYSTALS; SPECTROSCOPY;

D O I：

10.1016/j.matlet.2009.02.067

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Yb and Er codoped LaF3 nanocrystals were synthesized and studied. The upconversion luminescence properties of nanocrystals capped with different ligands are mainly dependent on the ligands, especially for the red emission which is sensitive to the nonradiative relaxation. The chelation between the ligands and rare earth ions can affect the morphology and fluorescent properties of samples. The chelating ligands will reduce the nonradiative quenching by isolating the RE ions from surrounding environment. So the upconversion luminescence properties of the samples vary correspondingly. Crown Copyright (C) 2009 Published by Elsevier B.V. All rights reserved.

引用

页码：1285 / 1288

页数：4

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