Investigation of spectroscopic properties in Eu2+ activated Ba5-xSrx(PO4)3Cl

被引：1

作者：

Ren G.-Q. ^{[1
]}

Yang Y.-M. ^{[1
]}

Ma S.-Y. ^{[1
]}

机构：

[1] College of Physics Science and Technology, Hebei University

来源：

Faguang Xuebao/Chinese Journal of Luminescence | 2011年 / 32卷 / 05期

关键词：

Emission; LED; Phosphor;

D O I：

10.3788/fgxb20113205.0440

中图分类号：

学科分类号：

摘要：

Eu2+ doped Ba5-xSrx(PO4)3Cl (x=0,1,2,3,4,5)blue phosphors particle were prepared by the conventional solid-state reaction method. It can be clearly exhibited that XRD peaks of the samples shift to the smaller angle side with the increasing content of Ba2+.In excitation spectra, two peaks fell toward each other of all the samples and their intensities decreased with increasing content of Ba2+, which can be explained by the configuration-coordinate model. Seen from the emission spectra, the position of the emission peaks did not change with the excitation wavelengths, which indicated that two emission peaks did not come from two different sites of Eu2+ ions. It can be attributed to two Stark levels of 4f65d1 configuration. The broader emission bands can be attributed to the increase of inhomogeneous line width from changed crystal field by introducing Ba2+ ions. The excitation and emission spectra show that Eu2+ doped Ba3Sr2(PO4)3Cl is a promising blue phosphor for ultraviolet light emitting diode (LED).

引用

页码：440 / 444

页数：4

共 12 条

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