Luminescent properties of PEG-added nanocrystalline YVO4:Eu3+ phosphor prepared by a hydrothermal method

被引：47
作者：
Choi, Sungho [1 ]
Moon, Young-Min [1 ]
Jung, Ha-Kyun [1 ]
机构：
[1] Korea Res Inst Chem Technol, Adv Mat Div, Taejon 305600, South Korea
来源：
JOURNAL OF LUMINESCENCE | 2010年 / 130卷 / 04期
关键词：
Nanophosphor; Yttrium vanadate; Surface passivation; NANOPARTICLES; YVO4-EU; NANOPHOSPHORS;
D O I：
10.1016/j.jlumin.2009.10.029
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
In an effort to obtain enhanced luminescence under photoexcitation as well as to clarify the underlying correlation between non-radiative sites and a Surface modifier in a nanoscale phosphor, YVO4:Eu3+ Was synthesized via a polyethylene glycol (PEG)-assisted hydrothermal process. The temperature variable photoluminescence reveals that the overall emission behaviors of PEG-added YVO4:Eu3+ phosphor was similar to those of a post-annealed sample without PEG addition. This polymeric agent induces a rough thin layer onto the YVO4:Eu3+ nanoparticle during synthetic procedure, resulting in the prevention of surface-adsorbed species known as non-radiative sites such as NH4+ as well as hydroxyl groups. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码：549 / 553
页数：5
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