Photoluminescent properties of LaVO4:Eu3+ by structural transformation

被引：31

作者：

Park, Sung Wook ^{[1
]}

Yang, Hyun Kyoung ^{[1
]}

Chung, Jong Won ^{[1
]}

Chen, Yeqing ^{[1
]}

Moon, Byung Kee ^{[1
]}

Choi, Byung Chun ^{[1
]}

Jeong, Jung Hyun ^{[1
]}

Kim, Jung Hwan ^{[2
]}

机构：

[1] Pukyong Natl Univ, Dept Phys, Pusan 608737, South Korea

[2] Dong Eui Univ, Dept Phys, Pusan 614714, South Korea

来源：

PHYSICA B-CONDENSED MATTER | 2010年 / 405卷 / 18期

基金：

新加坡国家研究基金会;

关键词：

LaVO4:Eu3+; Photoluminescence; XRD; RARE-EARTH IONS; LUMINESCENT PROPERTIES; OPTICAL-PROPERTIES; CRYSTAL-STRUCTURES; ENERGY-TRANSFER; PHOSPHORS; NANOCRYSTALS; EU3+; NANOPHOSPHORS; INTENSITIES;

D O I：

10.1016/j.physb.2010.06.052

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

LaVO4:Eu3+ powder was synthesized by a solid-state reaction using high energy ball milling. Generally, the bulk composition of LaVO4 synthesized by a conventional solid-state reaction has a thermodynamically stable monoclinic phase. In this study, a mixture of tetragonal and monoclinic phases was observed when the Eu3+ concentration was increased from 0.05 to 0.20 mol. The structural and optical properties of these samples were analyzed by X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM) and photoluminescence (PL) along with their lifetime measurements. The phosphors showed strong red emission at 619.5 nm due to the electric dipole transition D-5(0) -> F-7(2) of Eu3+ ions. The PL intensity of LaVO4:Eu3+ increased with increase in tetragonal phase concentration of LaVO4:Eu3+. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：4040 / 4044

页数：5

共 23 条

[1]

Blasse G., 1994, LUMINESCENT MAT, P134

[2] An Eu3+ ion's luminescence study of Al2O3:Eu3+,Bi3+ [J].

Chen, G ;

Shi, Y ;

Li, B ;

Zhang, N ;

Chi, Y ;

Dou, K .

JOURNAL OF MATERIALS SCIENCE LETTERS, 1995, 14 (23) :1707-1709

[3] Crystallization, phase transition and optical properties of the rare-earth-doped nanophosphors synthesized by chemical deposition [J].

Chen, XY ;

Yang, L ;

Cook, RE ;

Skanthakumar, S ;

Shi, D ;

Liu, GK .

NANOTECHNOLOGY, 2003, 14 (06) :670-674

[4] Selected-control hydrothermal synthesis and formation mechanism of monazite- and zircon-type LaVO4 nanocrystals [J].

Fan, Weiliu ;

Song, Xinyu ;

Bu, Yuxiang ;

Sun, Sixiu ;

Zhao, Xian .

JOURNAL OF PHYSICAL CHEMISTRY B, 2006, 110 (46) :23247-23254

[5] ENERGY-TRANSFER IN EUROPIUM DOPED YTTRIUM VANADATE CRYSTALS [J].

HSU, C ;

POWELL, RC .

JOURNAL OF LUMINESCENCE, 1975, 10 (05) :273-293

[6] Monazite and Zircon Type LaVO4:Eu Nanocrystals-Synthesis, Luminescent Properties, and Spectroscopic Identification of the Eu3+ Sites [J].

Jia, Chun-Jiang ;

Sun, Ling-Dong ;

Yan, Zheng-Guang ;

Pang, Yu-Cheng ;

Lue, Shao-Zhe ;

Yan, Chun-Hua .

EUROPEAN JOURNAL OF INORGANIC CHEMISTRY, 2010, (18) :2626-2635

[7] Structural transformation induced improved luminescent properties for LaVO4:Eu nanocrystals [J].

Jia, CJ ;

Sun, LD ;

Luo, F ;

Jiang, XC ;

Wei, LH ;

Yan, CH .

APPLIED PHYSICS LETTERS, 2004, 84 (26) :5305-5307

[8] OPTICAL ABSORPTION INTENSITIES OF RARE-EARTH IONS [J].

JUDD, BR .

PHYSICAL REVIEW, 1962, 127 (03) :750-&

[9] Correlation of photoluminescence of (Y, Ln)VO4:Eu3+ (Ln = Gd and La) phosphors with their crystal structures [J].

Kang, JH ;

Im, WB ;

Lee, DC ;

Kim, JY ;

Jeon, DY ;

Kang, YC ;

Jung, KY .

SOLID STATE COMMUNICATIONS, 2005, 133 (10) :651-656

[10] Effects of downconversion luminescent film in dye-sensitized solar cells [J].

Liu, JF ;

Yao, QH ;

Li, YD .

APPLIED PHYSICS LETTERS, 2006, 88 (17)

← 1 2 3 →