Laser-Activated Luminescence of BaAl2O4:Eu

被引：11
|
作者：
den Engelsen, Daniel [1 ]
Fern, George R. [1 ]
Ireland, Terry G. [1 ]
Silver, Jack [1 ]
机构：
[1] Brunel Univ London, Ctr Phosphor & Display Mat, Wolfson Ctr Mat Proc, Uxbridge UB8 3PH, Middx, England
来源：
ECS JOURNAL OF SOLID STATE SCIENCE AND TECHNOLOGY | 2020年 / 9卷 / 02期
基金：
英国工程与自然科学研究理事会;
关键词：
CRYSTAL-STRUCTURE; PERSISTENT LUMINESCENCE; SYNCHROTRON-RADIATION; PHOTOLUMINESCENCE; ALUMINATE; PHOSPHORS; EU2+; CATHODOLUMINESCENCE; EMISSION; BEHAVIOR;
D O I：
10.1149/2162-8777/ab682c
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this article the laser-activated (LA) luminescence of BaAl2O4 doped with 3 mol% Eu2+ and SrAl2O4 doped with 700 ppm Eu2+ is described. The LA spectrum of BaAl2O4:Eu did not show any emission from Eu2+, but rather luminescence from the Eu3+ ion. This surprising result is explained in terms of ionization of the excited Eu2+ ions (photo-ionization), while the freed electrons are trapped in an excited state of the F-centre: this is considered to be a deep trap. The temperature of the ferroelectric-paraelectric phase transition in BaAl2O4 has been determined at 180 degrees C from the Raman spectra recorded at various temperatures. (C) 2020 The Author(s). Published on behalf of The Electrochemical Society by IOP Publishing Limited.
引用
收藏
页数：6
相关论文
共 50 条
  • [31] Energy trapping to substitutional and charge compensation defects in persistent luminescent BaAl2O4:Tb3+
    Jayaramu, Shivaramu Nagarasanakote
    Coetsee, Elizabeth
    Holsa, Jorma
    Swart, Hendrik C.
    PHYSICA SCRIPTA, 2024, 99 (11)
  • [32] Charge carrier trapping processes in un-doped and BaAl2O4:Eu3+nanophosphor for thermoluminescent dosimeter applications
    Shivaramu, N. J.
    Coetsee, E.
    Roos, W. D.
    Nagabhushana, K. R.
    Swart, H. C.
    JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2020, 53 (47)
  • [33] Nanocrystalline BaAl2O4 powders prepared by aqueous combustion synthesis
    Ianos, Robert
    Lazau, Radu
    Babuta, Roxana
    Borcanescu, Silvana
    Boruntea, Cristian Renato
    CERAMICS INTERNATIONAL, 2013, 39 (03) : 2645 - 2650
  • [34] Enhanced afterglow property of BaAl2O4: Eu2+, Dy3+ phosphors by adding Li2CO3
    Ma, Junfeng
    Fan, Dongxiao
    Niu, Bingbing
    Lan, Xuena
    FUNCTIONAL MATERIALS LETTERS, 2017, 10 (03)
  • [35] Co-doping effect of Ca2+ on luminescent properties of BaAl2O4: Eu3+ phosphors
    Rezende, Marcos V. dos S.
    Andrade, Adriano B.
    Paschoal, Carlos William A.
    JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA, 2018, 225 : 62 - 65
  • [36] Effects of boric acid on structural and luminescent properties of BaAl2O4:(Eu2+, Dy3+) phosphors
    Qinan Mao
    Qianmin Yuan
    Zhenguo Ji
    Junhua Xi
    Zhe Kong
    Jun Zhang
    Research on Chemical Intermediates, 2016, 42 : 6557 - 6566
  • [37] Synthesis of BaAl2O4: Eu2+/Li+ co-doped spinel: study of crystal structure, microstructure, and photoluminescence characteristics
    Rafiaei, Seyed Mahdi
    Ahmadi, Mehrdad
    Nikooghadam, Davoud
    JOURNAL OF THE AUSTRALIAN CERAMIC SOCIETY, 2024,
  • [38] LEDs Phosphor BaAl2O4: Sm Prepared by Solution Combustion Synthesis
    Bajaj, N. S.
    Omanwar, S. K.
    PROCEEDING OF INTERNATIONAL CONFERENCE ON RECENT TRENDS IN APPLIED PHYSICS & MATERIAL SCIENCE (RAM 2013), 2013, 1536 : 803 - 804
  • [39] Bluish-green afterglow and blue photoluminescence of undoped BaAl2O4
    Zhai, Bao-Gai
    Huang, Yuan Ming
    RSC ADVANCES, 2023, 13 (44) : 31112 - 31122
  • [40] BaAl2O4:Eu2+, Dy3+ Nanotube Synthesis by Heating Conversion of Homogeneous Coprecipitates and Afterglow Characteristics
    Cheng, Baochang
    Fang, Liting
    Zhang, Zhaodong
    Xiao, Yanhe
    Lei, Shuijin
    JOURNAL OF PHYSICAL CHEMISTRY C, 2011, 115 (05) : 1708 - 1713
12345