Tunable upconversion luminescence of monodisperse Y2O3: Er3+/Yb3+/Tm3+ nanoparticles

被引：27
作者：
Wu, Qibai [1 ]
Lin, Shaoteng [1 ]
Xie, Zhongxiang [1 ]
Zhang, Liqing [1 ]
Qian, Yannan [1 ]
Wang, Yaodong [2 ]
Zhang, Haiyan [1 ]
机构：
[1] Guangdong Univ Technol, Sch Mat & Energy, Guangzhou 510006, Guangdong, Peoples R China
[2] Newcastle Univ, Sir Joseph Swan Ctr Energy Res, Newcastle Upon Tyne NE1 7RU, Tyne & Wear, England
来源：
APPLIED SURFACE SCIENCE | 2017年 / 424卷
关键词：
Upconversion; Y2O3: Er3+/Yb3+/Tm3+; Nanoparticles; Multicolor; EMISSION; LIGHT; NANOPHOSPHORS; YB; TM; LN; CATHODOLUMINESCENCE; MULTICOLOR;
D O I：
10.1016/j.apsusc.2017.02.136
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Monodisperse Y2O3: Er3+/Yb3+/Tm3+ nanoparticles with various dopant concentrations have been synthesized successfully by a homogeneous precipitation method. Their phase structures and surface morphologies have been characterized using X-ray diffraction (XRD) and scanning electron microscopy (SEM). The diversities of upconversion luminescence spectra and CIE coordinates of prepared samples are investigated in detail at room temperature under 980 nm excitation. Through adjusting the concentrations of Yb3+, Tm3+ and Er3+ ions, three upconversion emission bands in red, green and blue region could be tunable to achieve the color of interest and near white light emission can be obtained in the tri-doped Y2O3 nanoparticles for a variety of application. (C) 2017 Elsevier B.V. All rights reserved.
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收藏
页码：164 / 169
页数：6
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