Influence of fluxing agent on the luminescence properties of SrAl2O4:Eu2+ nanophosphors

被引：15

作者：

Sharma, Ravi ^{[1
]}

Sharma, Usha ^{[1
]}

机构：

[1] Govt Arts & Commerce Girls Coll, Dept Phys, Raipur 492001, CG, India

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2015年 / 649卷

关键词：

Strontium aluminate; Doped nanophosphors; Persistence luminescence; Fluxing agents; Mechanoluminescence; LONG PHOSPHORESCENCE; COMBUSTION SYNTHESIS; PHOTOLUMINESCENCE; MECHANISM; DY3+; EU2+; MECHANOLUMINESCENCE; NANOPARTICLES;

D O I：

10.1016/j.jallcom.2015.07.170

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：

Eu2+ doped strontium aluminate nanophosphors are prepared by combustion method. The X-ray diffraction (XRD) and transmission electron microscope (TEM) studies showed the emergence of mixed phase for higher concentration of H3BO3. The effect of fluxing agent H3BO3 on the phase structure and on the luminescence properties; such as mechanoluminescence (ML) and photoluminescence (PL) properties of SrAl2O4:Eu2+ nanophosphors are investigated. The variation in fluxing agent H3BO3 influenced the PL and ML intensity and the maximum PL and ML intensity was observed for 7.5% H3BO3. The PL emission and ML spectra showed broad band at 515 nm corresponding to the (4)f(6) (5)d(1) -> (4)f(7) transition. The PL and ML for different amount of Eu revealed that the optimal concentration of Eu is 3%. An initial rapid decay followed by long-lasting phosphorescence was observed for the synthesized samples. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：440 / 446

页数：7

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