Photophysical properties of highly efficient red-emitting CaTiO3:Eu3+ phosphors under near ultra-violet excitation

被引：23

作者：

Ha, Myoung Gyu ^{[1
]}

Lee, Jin Hwa ^{[1
]}

Bae, Jong Seong ^{[1
]}

Kim, Jong Pil ^{[1
]}

Hong, K. S. ^{[1
]}

Yang, Ho-Soon ^{[2
]}

机构：

[1] Pusan Ctr, Korea Basic Sci Inst, Pusan 618230, South Korea

[2] Pusan Natl Univ, Dept Phys, Pusan 609735, South Korea

来源：

CURRENT APPLIED PHYSICS | 2011年 / 11卷 / 06期

关键词：

CaTiO3; Eu3+ Red; emitting phosphors; Solid state reaction; Near ultra violet excitation; PHOTOLUMINESCENCE PROPERTIES; POWDER;

D O I：

10.1016/j.cap.2011.04.008

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The photophysical properties of europium-doped calcium titanate for near ultra-violet excitation were studied in order to investigate whether it is applicable to white light-emitting diodes. CaTiO3:Eu3+ phosphors were synthesized by using the solid-state reaction method. The structures and basic properties of the phosphors were characterized by using X-ray diffractometer, scanning electron microscope, UV-visible spectrophotometer, and X-ray photoelectron spectrometer. The photophysical properties were examined by taking excitation and emission spectra. A strong red luminescence corresponding to D-5(0)-> F-7(2) transition of Eu3+ under near ultra-violet excitation was observed. It was found that CaTiO3:Eu3+ was a red-emitting phosphor and had higher efficiency for operation under near ultra-violet excitation. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：1379 / 1383

页数：5

共 17 条

[1] Synthesis and luminescent properties of nanoparticles GdCaAl3O7: RE3+ (RE = Eu, Tb) via the sol-gel method [J].

Bao, Amurisana ;

Tao, Chunyan ;

Yang, Hua .

JOURNAL OF LUMINESCENCE, 2007, 126 (02) :859-865

[2] Raman and B-11 nuclear magnetic resonance spectroscopic studies of alkaline-earth lanthanoborate glasses [J].

Brow, RK ;

Tallant, DR ;

Turner, GL .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1996, 79 (09) :2410-2416

[3]

Carnall W.T., 1978, ANL7895

[4] Synthesis and spectroscopic properties of CaTiO3 nanocrystals doped with Pr3+ ions [J].

Deren, P. J. ;

Pazik, R. ;

Strek, W. ;

Boutinaud, Ph. ;

Mahiou, R. .

JOURNAL OF ALLOYS AND COMPOUNDS, 2008, 451 (1-2) :595-599

[5] Highly luminescent red light phosphor CaTiO3:Eu3+ under near-ultraviolet excitation [J].

Fu, Jiapeng ;

Zhang, Qinghong ;

Li, Yaogang ;

Wang, Hongzhi .

JOURNAL OF LUMINESCENCE, 2010, 130 (02) :231-235

[6] Preparation and photoluminescence property of a loose powder, Ca3Al2O6:Eu3+ by calcination of a layered double hydroxide precursor [J].

Gao, Xiaorui ;

Lei, Lixu ;

Lv, Changgui ;

Sun, Yueming ;

Zheng, Hegen ;

Cui, Yiping .

JOURNAL OF SOLID STATE CHEMISTRY, 2008, 181 (08) :1776-1781

[7]

Henderson B., 1989, OPTICAL SPECTROSCOPY

[8] UV excitation and trapping centers in CaTiO3:Pr3 [J].

Jia, W ;

Jia, D ;

Rodriguez, T ;

Evans, DR ;

Meltzer, RS ;

Yen, WM .

JOURNAL OF LUMINESCENCE, 2006, 119 :13-18

[9] Warm-white-light emitting diode utilizing a single-phase full-color Ba3MgSi2O8:Eu2+, Mn2+ phosphor [J].

Kim, JS ;

Jeon, PE ;

Choi, JC ;

Park, HL ;

Mho, SI ;

Kim, GC .

APPLIED PHYSICS LETTERS, 2004, 84 (15) :2931-2933

[10] Monodisperse spherical core-shell structured SiO2-CaTiO3:Pr3+ phosphors for field emission displays [J].

Liu, Xiaoming ;

Jia, Peiyun ;

Lin, Jun ;

Li, Guangzhi .

JOURNAL OF APPLIED PHYSICS, 2006, 99 (12)

← 1 2 →