Photophysical properties of Eu3+ and Tb3+-doped ZnAl2O4 phosphors obtained by combustion reaction

被引：87

作者：

Barros, B. S.

Melo, P. S.

Kiminami, R. H. G. A. ^{[1
]}

Costa, A. C. F. M.

de Sa, G. F.

Alves, S., Jr.

机构：

[1] Univ Fed Campina Grande, Dept Mat Engn, Campina Grande, PB, Brazil

[2] Univ Fed Pernambuco, Dept Fundamental Chem, Rare Earth Lab, BSTR, Recife, PE, Brazil

[3] Univ Fed Sao Carlos, Dept Mat Engn, Sao Carlos, SP, Brazil

来源：

JOURNAL OF MATERIALS SCIENCE | 2006年 / 41卷 / 15期

关键词：

D O I：

10.1007/s10853-006-0035-6

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Europium- and terbium-doped zinc aluminate oxide nanocrystals with a spinel structure were successfully prepared by a combustion method, using urea as fuel. The samples thus obtained were characterized by X-ray diffraction, scanning electron microscopy and luminescence spectroscopy. X-ray diffraction results confirmed the formation of ZnAl2O4 spinel phase and a minor amount of ZnO. Our SEM results revealed agglomerates in the shape of irregular plates composed of nanoparticles with dispersed points of second phase in the surface. Powders containing Eu3+ and Tb3+ ions displayed red and green photoluminescence, respectively.

引用

页码：4744 / 4748

页数：5

共 21 条

[1] Combustion synthesis of Eu-, Tb- and Tm- doped Ln2O2S (Ln = Y, La, Gd) phosphors [J].