Characterization, luminescence and EPR investigations of Eu2+ activated strontium aluminate phosphor

被引：34

作者：

Singh, Vijay ^{[1
]}

Zhu, Jun-Jie ^{[1
]}

Tiwari, Manoj ^{[2
]}

Soni, Manish ^{[3
]}

Aynayas, Mahendra ^{[3
]}

Hyun, Seok-Hee ^{[4
]}

Narayanan, R. ^{[5
]}

Mohapatra, Manoj ^{[6
]}

Natarajan, V. ^{[6
]}

机构：

[1] Nanjing Univ, Key Lab Analyt Chem Life Sci, Dept Chem, Nanjing 210093, Peoples R China

[2] Manoharbhai Patel Inst Engn & Technol, Gondia 441614, India

[3] Sadhu Vaswani Coll, Dept Phys, Bhopal 462030, India

[4] Kyungpook Natl Univ, Ctr Sci Instruments, Taegu 702701, South Korea

[5] Kyungpook Natl Univ, Sch Dent, Dept Dent Biomat, Taegu 702701, South Korea

[6] Bhabha Atom Res Ctr, Div Radiochem, Mumbai 400085, Maharashtra, India

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 2009年 / 355卷 / 50-51期

基金：

中国国家自然科学基金;

关键词：

Luminescence; Phosphors; Electron spin resonance; OPTICAL-PROPERTIES; GEL; PHOTOLUMINESCENCE; TEMPERATURE; SRAL2O4-EU; EMISSION; GALLATE;

D O I：

10.1016/j.jnoncrysol.2009.08.027

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Strong blue-green light emitting Eu doped SrAl2O4 phosphor was synthesized by a low-temperature initiated, self-propagating and gas producing combustion process in a very short time (<5 min). The prepared powder was characterized by X-ray diffraction, Fourier-transform infrared spectrometry and scanning electron microscopy. The excitation spectrum shows a peak at 397 nm. Upon excitation at 397 nm, the emission spectrum exhibits a well defined broad band with maximum at 493 nm corresponding to 4f(6)5d -> 4f(7) transition. Electron paramagnetic resonance (EPR) measurements at X-band showed low held signals due to Eu2+ ions in SrAl2O4:Eu. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：2491 / 2495

页数：5

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