The effect of doping La3+ on structure and luminescent properties of Sr2SiO4:Eu2+ phosphors

被引：19
作者：
Zhao, Cong [1 ,2 ]
Zhu, Da-chuan [1 ]
Pu, Yong [2 ]
Peng, Ling-ling [2 ]
Han, Tao [2 ]
Tu, Ming-jing [1 ,2 ]
机构：
[1] Sichuan Univ, Coll Mat Sci & Engn, Chengdu 610065, Sichuan, Peoples R China
[2] Chongqing Univ Arts & Sci, Res Inst New Mat Technol, Chongqing 402160, Peoples R China
来源：
CERAMICS INTERNATIONAL | 2015年 / 41卷 / 10期
基金：
中国国家自然科学基金;
关键词：
Solid-state reaction method; Strontium silicate; Phosphors; Doping La3+; EMISSION; PHOTOLUMINESCENCE; ENHANCEMENT; EU2+;
D O I：
10.1016/j.ceramint.2015.07.119
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
La3+-doped strontium silicate phosphors, Sr1.995-1.5xLaxSiO4:0.005Eu(2+), have been prepared via a solid-state reaction method. The as-prepared samples have been characterized by XRD and spectrophotometer, respectively. The XRD result shows that doping La3+ results in the phase transformation (beta-Sr2SiO4 -> alpha'-Sr2SiO4). The emission spectrum of the un-doped sample contains two distinct single bands, which come from Eu2+ on the two kinds of Sr2+ sites in the host of phosphor. The two single bands merge together with the increasing of La3+. Moreover, the CIE chromaticity coordinates of emission spectrum move to green region with the increasing of La3+. Doping La3+ shows a potential for improving the performance of Sr2SiO4:Eu2+ phosphors. (C) 2015 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
引用
收藏
页码：13341 / 13347
页数：7
相关论文
共 23 条
  • [1] Enhancement of white light emission from novel Ca3Y2Si3O12:Dy3+ phosphors with Ce3+ ion codoping
    Bandi, Vengala Rao
    Nien, Yung-Tang
    Chen, In-Gann
    [J]. JOURNAL OF APPLIED PHYSICS, 2010, 108 (02)
  • [2] Influence of high pressure on Sr2SiO4:Eu2+ luminescence
    Barzowska, Justyna
    Szczodrowski, Karol
    Krosnicki, Marek
    Kuklinski, Benedykt
    Grinberg, Marek
    [J]. OPTICAL MATERIALS, 2012, 34 (12) : 2095 - 2100
  • [3] Consequences of Optimal Bond Valence on Structural Rigidity and Improved Luminescence Properties in SrxBa2-xSiO4:Eu2+ Orthosilicate Phosphors
    Denault, Kristin A.
    Brgoch, Jakoah
    Gaultois, Michael W.
    Mikhailovsky, Alexander
    Petry, Ralf
    Winkler, Holger
    DenBaars, Steven P.
    Seshadri, Ram
    [J]. CHEMISTRY OF MATERIALS, 2014, 26 (07) : 2275 - 2282
  • [4] Simultaneous tuning for excitation and emission of N doped Sr2SiO4:Eu for white light LEDs
    Gu, Yunxin
    Zhang, Qinghong
    Li, Yaogang
    Wang, Hongzhi
    [J]. JOURNAL OF ALLOYS AND COMPOUNDS, 2011, 509 (06) : L109 - L112
  • [5] Structure and site selective luminescence of sol-gel derived Eu:Sr2SiO4
    Gupta, S. K.
    Mohapatra, M.
    Kaity, S.
    Natarajan, V.
    Godbole, S. V.
    [J]. JOURNAL OF LUMINESCENCE, 2012, 132 (06) : 1329 - 1338
  • [6] Henderson B., 2005, Crystal-Field Engineering of Solid-State Laser Materials
  • [7] Luminescent enhancement with tunable emission in Sr2SiO4:Eu2+ phosphors for white LEDs
    Hsu, Chia-Hao
    Jagannathan, R.
    Lu, Chung-Hsin
    [J]. MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS, 2010, 167 (03): : 137 - 141
  • [8] Preparation of Eu-activated strontium orthosilicate (Sr1.95SiO4:Eu0.05) phosphor by a sol-gel method and its luminescent properties
    Hsu, Wei-Hsiang
    Sheng, Meng-Huei
    Tsai, Ming-Shyong
    [J]. JOURNAL OF ALLOYS AND COMPOUNDS, 2009, 467 (1-2) : 491 - 495
  • [9] White light-emitting diodes with excellent color rendering based on organically capped CdSe quantum dots and Sr3SiO5:Ce3+, Li+ phosphors
    Jang, Ho Seong
    Yang, Heesun
    Kim, Sung Wook
    Han, Ji Yeon
    Lee, Sang-Geun
    Jeon, Duk Young
    [J]. ADVANCED MATERIALS, 2008, 20 (14) : 2696 - +
  • [10] Ce3+ -Activated γ-Ca2SiO4 and Other Olivine-Type ABXO4 Phosphors for Solid-State Lighting
    Kalaji, Ali
    Mikami, Masayoshi
    Cheetham, Anthony K.
    [J]. CHEMISTRY OF MATERIALS, 2014, 26 (13) : 3966 - 3975
123