Mn2+, Eu2+ and Eu3+ emission in co-doped LaAl11O18 phosphors

被引：5

作者：

Singh, Vijay ^{[1
]}

Sivaramaiah, G. ^{[2
]}

Rao, J. L. ^{[3
]}

Dhoble, S. j. ^{[4
]}

Kim, S. H. ^{[1
]}

机构：

[1] Konkuk Univ, Dept Chem Engn, Seoul 143701, South Korea

[2] Govt Coll Men Autonomous, Dept Phys, Cuddapah 516004, India

[3] Sri Venkateswara Univ, Dept Phys, Tirupati 517 502, Andhra Pradesh, India

[4] RTM Nagpur Univ, Dept Phys, Nagpur 440033, Maharashtra, India

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2015年 / 149卷

关键词：

Electron paramagnetic resonance; Luminescence; Optical materials; Oxides; Optical properties; ELECTRON-SPIN-RESONANCE; ENERGY-TRANSFER; LUMINESCENCE PROPERTIES; MANGANESE CENTERS; EPR; PHOTOLUMINESCENCE; CERAMICS; SPECTRUM;

D O I：

10.1016/j.matchemphys.2014.10.007

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The LaAl11O18:Eu-Mn phosphor was prepared at furnace temperature of 500 degrees C in single step process by solution combustion technique. The sample was characterized by XRD and EDX methods, which showed that the hexagonal phase and presence of dopants, respectively. The absorption in the 230-800 nm region and excitation spectrum corresponding to the emission at 442, 514 and 616 nm for LaAl11O18:Eu-Mn phosphor have been recorded. The EPR spectrum of this phosphor exhibits the signals with the effective g values at g approximate to 7.50, 4.82 and 1.97. The existence of Eu2+ and Mn2+ in LaAl11O18 matrix was confirmed by EPR experiments. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：202 / 208

页数：7

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