Luminescence and microstructures of Eu3+-doped in triple phosphate Ca8MgR(PO4)7 (R = La, Gd, Y) with whitlockite structure

被引：54

作者：

Huang, Yanlin ^{[2
]}

Jiang, Chuanfang ^{[2
]}

Cao, Yonggang ^{[2
]}

Shi, Liang ^{[1
]}

Seo, Hyo Jin ^{[1
]}

机构：

[1] Pukyong Natl Univ, Dept Phys, Pusan 608737, South Korea

[2] Soochow Univ, Coll Chem Chem Engn & Mat Sci, Suzhou 215123, Peoples R China

来源：

MATERIALS RESEARCH BULLETIN | 2009年 / 44卷 / 04期

关键词：

Inorganic compounds; Chemical synthesis; Optical properties; CRYSTAL-STRUCTURE; CALCIUM; BETA-CA3(PO4)2; EU3+; MG; LN;

D O I：

10.1016/j.materresbull.2008.09.025

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Eu3+-doped triple phosphate Ca8MgR(PO4)(7) (R = La, Gd, Y) was synthesized by the general high temperature solid-state reaction. This phosphor was characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR) and emission spectra. XRD and FT-IR analysis indicated that Ca8MgR(PO4)(7) (R = La, Gd, Y) crystallized in single-phase component with whitlockite-like structure (space group R3c) of beta-Ca-3(PO4)(2). Under the excitation of UV light, the phosphors show bright red emission assigned to the transition (D-5(0) -> F-7(2)) at 612 nm. The crystallographic sites of Eu3+ ions in Ca8MgR(PO4)(7) (R = La, Gd, Y) host were discussed on the base of site-selective excitation and emission spectra, luminescence decay and its host crystal structure. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：793 / 798

页数：6

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