Electrospinning-derived Tb2(WO4)3:Eu3+ nanowires: energy transfer and tunable luminescence properties

被引：80

作者：

Hou, Zhiyao ^{[1
,2
]}

Cheng, Ziyong ^{[1
]}

Li, Guogang ^{[1
]}

Wang, Wenxin ^{[2
]}

Peng, Chong ^{[1
]}

Li, Chunxia ^{[1
]}

Ma, Ping'an ^{[1
]}

Yang, Dongmei ^{[1
]}

Kang, Xiaojiao ^{[1
]}

Lin, Jun ^{[1
]}

机构：

[1] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Rare Earth Resource Utilizat, Changchun 130022, Peoples R China

[2] Harbin Engn Univ, Key Lab Superlight Mat & Surface Technol, Minist Educ, Coll Mat Sci & Chem Engn, Harbin 150001, Peoples R China

来源：

NANOSCALE | 2011年 / 3卷 / 04期

基金：

中国国家自然科学基金;

关键词：

RARE-EARTH IONS; OPTICAL SPECTROSCOPY; CARBON NANOTUBES; RED PHOSPHOR; EMISSION; EU3+; PHOTOLUMINESCENCE; NANOFIBERS; SURFACE; TB3+;

D O I：

10.1039/c0nr00774a

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

One-dimensional Tb-2(WO4)(3) and Tb-2(WO4)(3):Eu3+ nanowires have been prepared by a combination method of sol-gel process and electrospinning. X-Ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), photoluminescence (PL), low voltage cathodoluminescence (CL) and time-resolved emission spectra as well as kinetic decays were used to characterize the resulting samples. The as-obtained precursor samples present fiber-like morphology with uniform size, and Tb-2(WO4)(3) and Tb-2(WO4)(3):Eu3+ nanowires were formed after annealing. Under ultraviolet excitation and low-voltage electron beams excitation into WO42- and the f-f transition of Tb3+, the Tb-2(WO4)(3) samples show the characteristic emission of Tb3+ corresponding to D-5(4)-F-7(6, 5, 4, 3) transitions due to an efficient energy transfer from WO42- to Tb3+, while Tb-2(WO4)(3):Eu3+ samples mainly exhibit the characteristic emission of Eu3+ corresponding to D-5(0)-F-7(0, 1, 2) transitions due to an energy transfer occurs from WO42- and Tb3+ to Eu3+. The increase of Eu3+ concentration leads to the increase of the energy transfer efficiency from Tb3+ to Eu3+. The PL color of Tb-2(WO4)(3):x mol% Eu3+ phosphors can be tuned from green to red easily by changing the doping concentration (x) of Eu3+, making the materials have potential applications in fluorescent lamps and color display fields.

引用

页码：1568 / 1574

页数：7

共 66 条

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