Luminescence of europium(III) and manganese(II) in barium and zinc orthosilicate

被引：326

作者：

Pires, AM ^{[1
]}

Davolos, MR ^{[1
]}

机构：

[1] UNESP, Inst Quim, BR-14801970 Araraquara, SP, Brazil

来源：

CHEMISTRY OF MATERIALS | 2001年 / 13卷 / 01期

关键词：

D O I：

10.1021/cm000063g

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The aim of this work is to report on the luminescence properties of BaZnSiO4 activated by Eu3+ and Mn2+ ions. Doped and undoped powder samples were prepared by solid-state reaction starting from oxides and carbonates or Ba2SiO4:Eu3+ and Zn2SiO4:Mn2+ precursors. X-ray diffraction powder data, IR vibrational, and UV-vis luminescence spectroscopies were carried out. Results showed that doped and undoped samples from both types of precursors have the same structure and crystallize with a superstructure of hexagonal kalsilite. Vibrational spectroscopy has confirmed the formation of a silicate group, which outlines differences between products and silicate precursors. The observed luminescence assigned to Eu3+ and Mn2+ transitions covered most parts of the visible spectrum, an important requirement for phosphors in fluorescent low-pressure mercury vapor lamps.

引用

页码：21 / 27

页数：7

共 23 条

[1]

[Anonymous], 1964, B SOC FR MINERAL CR

[2] FLUORESCENCE OF EU2+-ACTIVATED PHASES IN BINARY ALKALINE EARTH ORTHOSILICATE SYSTEMS [J].