Synthesis and photoluminescence properties of red, green and blue emitting LaYO3:M (M = Eu3+, Tb3+, Sm3+,Bi3+, Pb2+) phosphors

被引：21

作者：

Taikar, D. R. ^{[1
]}

Tamboli, Sumedha ^{[2
]}

Dhoble, S. J. ^{[2
]}

机构：

[1] Shri Lemdeo Patil Mahavidyalaya, Dept Phys, Nagpur, Maharashtra, India

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

来源：

OPTIK | 2017年 / 142卷

关键词：

LaYO3; Photoluminescence; Co-precipitation; Tb3+; Pb2+; Bi3+; MIXED-METAL OXIDES; CRYSTAL-STRUCTURE; LUMINESCENCE PROPERTIES; ENERGY-TRANSFER; FLUORESCENCE; IMPURITIES; INTENSITY; CENTERS;

D O I：

10.1016/j.ijleo.2017.05.095

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Red, green and blue light emitting Eu3+, Sm3+, Tb3+, Bi3+ and Pb2+ ions doped LaYO3 phosphors were synthesized by co-precipitation method and their photoluminescence (PL) properties were studied. The Eu3+-doped LaY=O-3 compound exhibited characteristic emissions of Eu3+. The intensity of PL emission peak found to be more at 614 nm than 595 nm. LaYO3:Sm3+ phosphor showed PL emission at 570 nm, 608 nm and 660 nm which is characteristic emission of Sm3+.Tb3+ doped LaYO3 compound show intense emission at 545 nm which again characteristic emission of Tb3+ in LaYO3 host. Eu3+, Tb3+ and Sm3+ doped LaYO3 phosphors displayed charge transfer band in UV region which is responsible for intense emission in red, orange and green region. Transition metal ions such as Pb2+ and Bi3+ doped LaYO3 phosphor exhibited PL emission in blue region. Prepared phosphors are useful to be used in display devices and related applications. (C) 2017 Elsevier GmbH. All rights reserved.

引用

页码：183 / 190

页数：8

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