Controlled synthesis and luminescent properties of different morphologies GdBO3:Eu3+ phosphors self-assembled of nanoparticles

被引：20

作者：

Leng, Zhihua ^{[1
]}

Liu, Yali ^{[1
]}

Zhang, Nannan ^{[1
]}

Li, Linlin ^{[1
]}

Gan, Shucai ^{[1
]}

机构：

[1] Jilin Univ, Coll Chem, Changchun 130026, Peoples R China

来源：

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 2015年 / 472卷

关键词：

Microcrystal; Recrystallization; Ostwald ripening; Photoluminescence; HOLLOW SPHERES; PHOTOLUMINESCENCE; ARCHITECTURES; EUROPIUM; OXIDES;

D O I：

10.1016/j.colsurfa.2015.02.046

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：

Uniform cake-like and olive-like GdBO3 samples have been successfully synthesized for the first time via a simple solution-based hydrothermal method using Gd(OH)CO3 colloid spheres and NaBO2 center dot 4H(2)O as the precursors. It was found that small amount ethanol in the hydrothermal process was responsible for determining the shape of products. The FT-IR analysis indicates that vaterite-type GdBO3 can be synthesized by this method. The obtained cake-like and olive-like GdBO3 with rough surfaces have similar mircostructures which are composed of numerous nanoparticles. Time-dependent experiments were employed to study the possible formation mechanism. The formation of cake-like and olive-like GdBO3 mircostructures self-assembled of nanoparticles can be ascribed to the Ostwald ripening process. A detailed investigation on the photoluminescence (PL) properties of GdBO3:Eu3+ samples with different morphologies indicates that the PL properties of as-obtained GdBO3:Eu3+ phosphors are dependent on their morphologies. The effect of Eu3+ doping concentration on PL intensity was also investigated and the quenching concentration of GdBO3:Eu3+ is 20%. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：109 / 116

页数：8

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