Luminescence properties and energy transfer in Dy3+ and Eu3+ co-doped Sr3Y(PO4)3 phosphor

被引：0

作者：

Ren, Qiang ^{[1
]}

Wang, Baoxing ^{[1
]}

Wu, Xiulan ^{[1
]}

Wei, Tengyue ^{[1
]}

Huo, Zhezhe ^{[1
]}

机构：

[1] School of Materials Science and Engineering, Shaanxi University of Science and Technology, Xi'an,710021, China

来源：

Journal of Alloys and Compounds | 2016年 / 684卷

关键词：

High temperature applications - Luminescence of inorganic solids - Strontium compounds - Dysprosium compounds - Emission spectroscopy - Solid state reactions - Europium compounds - Phosphors;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The phosphors Sr3Y(PO4)3: Dy3+, Eu3+ were synthesized by a high temperature solid-state reaction method in air atmosphere and their crystal structures, luminescence properties, lifetime, and energy transfer mechanism were investigated in detail. The co-doped Dy3+ and Eu3+ in Sr3Y(PO4)3 could enhance emission of Eu3+ ions and a series of characteristic emissions of Dy3+ and Eu3+ were observed in the emission spectra at around 487 nm, 575 nm, and 615 nm when excited at 350 nm. It indicates that the energy transfer occurs from Dy3+ to Eu3+ and the intensity ratio of multicolor emission could be tuned by adjusting their concentration ratio on the basis of efficient Dy3+ - Eu3+ energy transfer. The energy-transfer mechanism from Dy3+ to Eu3+ in Sr3Y(PO4)3 is determined to be a quadrupole-quadrupole interaction and the critical distance between Dy3+ and Eu3+ is 15.22 Å. The decay life time of the Dy3+ ions decreases with the increase of the Eu3+ dosage concentration. © 2016 Elsevier B.V.

引用

页码：677 / 682

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