Preparation and photoluminescence property of a loose powder, Ca3Al2O6:Eu3+ by calcination of a layered double hydroxide precursor

被引：46

作者：

Gao, Xiaorui ^{[1
]}

Lei, Lixu ^{[1
]}

Lv, Changgui ^{[2
]}

Sun, Yueming ^{[1
]}

Zheng, Hegen ^{[3
]}

Cui, Yiping ^{[2
]}

机构：

[1] Southeast Univ, Sch Chem & Chem Engn, Nanjing 211189, Peoples R China

[2] Southeast Univ, Adv Photon Ctr, Nanjing 210096, Peoples R China

[3] Southeast Univ, State Key Lab Coordinat Chem, Nanjing 210093, Peoples R China

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 2008年 / 181卷 / 08期

关键词：

layered double hydroxide; precursor; calcium aluminate; Ca3Al2O6 : Eu3+; photoluminescence;

D O I：

10.1016/j.jssc.2008.03.025

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A novel red light-emitting material, Ca3Al2O6:Eu3+, which is the first example found in the Ca3Al2O6 host, was prepared by calcination of a layered double hydroxide precursor at 1350 C. The precursor, [Ca2.9-xAl2Eux(OH)(9.8)](NO3)(2+x).2.5H(2)O, was prepared by coprecipitation of metal nitrates with sodium hydroxide. The material is a loose powder composed of irregular particles formed from aggregation of particles of a few nanometers, as shown in scanning electron microscope (SEM) images. It was found that the photoluminescence intensity reached the maximum when the calcination temperature was 1350 degrees C and the concentration of Eu3+ was 1.0%. The material emits bright red emission at 614 nm under a radiation of lambda = 250 nm. (C) 2008 Elsevier Inc. All rights reserved.

引用

页码：1776 / 1781

页数：6

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