White light-emitting properties of NaGdF4 nanotubes through Tb3+, Eu3+ doping

被引：30

作者：

Liu, Lu ^{[1
]}

Liang, Yimai ^{[1
]}

Li, Linlin ^{[1
]}

Zou, Lianchun ^{[1
]}

Gan, Shucai ^{[1
]}

机构：

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

来源：

CRYSTENGCOMM | 2015年 / 17卷 / 40期

关键词：

UP-CONVERSION NANOPARTICLES; ENERGY-TRANSFER; TUNABLE LUMINESCENCE; SOLVOTHERMAL SYNTHESIS; SYNTHETIC ROUTE; HIGHLY UNIFORM; PHOSPHOR; EMISSION; LN; NANOCRYSTALS;

D O I：

10.1039/c5ce01118c

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

White light-emitting NaGdF4 phosphor samples based on efficient energy transfer between Tb3+ and Eu3+ were synthesized via a conventional hydrothermal reaction process. X-ray diffraction (XRD), field-emission scanning electron microscopy (FE-SEM), high-resolution transmission electron microscopy (HRTEM), and photoluminescence (PL) spectra and lifetime measurement were performed to characterize the samples. The energy transfer process between Tb3+ and Eu3+ was demonstrated to be a resonant type via a dipole-dipole interaction mechanism. Furthermore, for NaGdF4: Tb3+, Eu3+, white light emission can be realized in the single-phase NaGdF4 host by reasonably adjusting the relative doping concentrations of Tb3+ and Eu3+ under ultraviolet excitation. Due to their excellent PL properties and good CIE chromaticity coordinates, the as-prepared Tb3+, Eu3+ co-doped NaGdF4 nanocrystalline phosphors have potential application in field-emitting displays.

引用

页码：7754 / 7761

页数：8

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