Polymorphological LaVO4:Dy3+ phosphors: hydrothermal synthesis and luminescent properties

被引：0

作者：

Liu, Guocong ^{[1
]}

Huang, Kelong ^{[1
]}

机构：

[1] Cent S Univ, Coll Chem & Chem Engn, Changsha 410083, Peoples R China

来源：

ADVANCED MATERIALS, PTS 1-4 | 2011年 / 239-242卷

关键词：

LaVO4:Dy3+; hydrothermal synthesis; growth mechanism; luminescence; NANOCRYSTALS;

D O I：

10.4028/www.scientific.net/AMR.239-242.1735

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Tetragonal LaVO4:Dy3+ crystals with novel shapes of rod, rod-bundles and needle-like flower were successfully synthesized via a facile and surfactant-free hydrothermal process. The products were characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM), and photoluminescence spectroscopy (PL).The experimental results showed that the concentration of the precursor and the reaction temperature played important roles in morphological evolution of LaVO4:Dy3+ crystals (NCs). It was found that needle-like flower LaVO4:Dy3+ exhibited the highest B/Y value compared with rod and rod-bundle samples. Possible growth mechanisms of polymorphological LaVO4:Dy3+ crystals were briefly discussed.

引用

页码：1735 / 1738

页数：4

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