Excitation pathway and temperature dependent luminescence in color tunable Ba5Gd8Zn4O21:Eu3+ phosphors

被引：245

作者：

Tian, Bining ^{[1
,2
,3
]}

Chen, Baojiu ^{[1
]}

Tian, Yue ^{[1
,2
,3
]}

Li, Xiangping ^{[1
]}

Zhang, Jinsu ^{[1
]}

Sun, Jiashi ^{[1
]}

Zhong, Haiyang ^{[1
]}

Cheng, Lihong ^{[1
]}

Fu, Shaobo ^{[1
]}

Zhong, Hua ^{[1
]}

Wang, Yizhuo ^{[1
]}

Zhang, Xiangqing ^{[1
]}

Xia, Haiping ^{[4
]}

Hu, Ruinian ^{[2
,3
]}

机构：

[1] Dalian Maritime Univ, Dept Phys, Dalian 116026, Peoples R China

[2] Dalian Nationalities Univ, Coll Life Sci, Dalian 116600, Peoples R China

[3] Dalian Nationalities Univ, Sch Phys & Mat Engn, Dalian 116600, Peoples R China

[4] Ningbo Univ, Key Lab Photoelect Mat, Ningbo 315211, Zhejiang, Peoples R China

来源：

JOURNAL OF MATERIALS CHEMISTRY C | 2013年 / 1卷 / 12期

基金：

中国国家自然科学基金;

关键词：

ENERGY-TRANSFER; PHOTOLUMINESCENCE PROPERTIES; RED; EU3+; INTENSITIES;

D O I：

10.1039/c3tc00915g

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A series of polycrystalline Ba5Gd8Zn4O21:Eu3+ phosphors were synthesized by a solid state reaction for the first time. The crystal structures were examined by means of X-ray diffraction. The luminescence spectra and decay curves were investigated as a function of Eu3+ concentration and temperature. It was found that the luminescent color of phosphor can be adjusted from white to red with the increase of Eu3+ concentration. Interestingly, emission spectra with different D-5(0)/D-5(1,2,3) ratios were observed when excited at 276 (corresponding to the O2- -> Eu3+ charge transfer band) and 395 nm (f-f transition F-7(0) -> L-5(6)). The energy transfers between Eu3+ ions in Ba5Gd8Zn4O21 have been confirmed to be resonant type via exchange interaction for the D-5(0) level and electric dipole-dipole interaction for D-5(J) (J = 1-3) levels. Temperature dependent measurements revealed that the crossover process is the main mechanism for quenching luminescence of the D-5(0) level of Eu3+ in the Ba5Gd8Zn4O21:Eu3+ phosphors. Finally, Judd-Ofelt parameters of Eu3+ in the Ba5Gd8Zn4O21 phosphors were calculated by a facile method in the framework of the J-O theory, in which the refractive index of Ba5Gd8Zn4O21 was deduced to be about 1.95.

引用

页码：2338 / 2344

页数：7

共 28 条

[21] Luminescent Properties of Y2(MoO4)3:Eu3+ Red Phosphors with Flowerlike Shape Prepared via Coprecipitation Method
Tian, Yue
Qi, Xiaohui
Wu, Xiaowei
Hua, Ruinian
Chen, Baojiu
[J]. JOURNAL OF PHYSICAL CHEMISTRY C, 2009, 113 (24) : 10767 - 10772
[22] CHARACTERIZATION OF ENERGY TRANSFER INTERACTIONS BETWEEN RARE EARTH IONS
VANUITERT, LG
[J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1967, 114 (10) : 1048 - +
[23] Wakefield G, 2001, ADV MATER, V13, P1557, DOI 10.1002/1521-4095(200110)13:20<1557::AID-ADMA1557>3.0.CO
[24] 2-W
[25] Crystallographic studies and X-ray diffraction patterns of Ba5R8Zn4O21 by Rietveld refinements
Wong-Ng, W
Kaduk, JA
Dillingham, J
[J]. POWDER DIFFRACTION, 2001, 16 (03) : 131 - 143
[26] Energy transfer and tunable luminescence properties of Eu3+ in TbBO3 microspheres via a facile hydrothermal process
Yang, Jun
Zhang, Cuimiao
Li, Chunxia
Yu, Yingning
Lin, Jun
[J]. INORGANIC CHEMISTRY, 2008, 47 (16) : 7262 - 7270
[27] Tunable luminescence in Ce3+, Mn2+-codoped calcium fluorapatite through combining emissions and modulation of excitation: a novel strategy to white light emission
Zhang, Cuimiao
Huang, Shanshan
Yang, Dongmei
Kang, Xiaojiao
Shang, Mengmeng
Peng, Chong
Lin, Jun
[J]. JOURNAL OF MATERIALS CHEMISTRY, 2010, 20 (32) : 6674 - 6680
[28] Eu3+-doped β-Ga2O3 nanophosphors: annealing effect, electronic structure and optical spectroscopy
Zhu, Haomiao
Li, Renfu
Luo, Wenqin
Chen, Xueyuan
[J]. PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2011, 13 (10) : 4411 - 4419

← 1 2 3 →