Structural and spectroscopic diagnosis of Eu:ZnO and Eu:Yb:ZnO glass and ceramics

被引：14
作者：
Bahadur, A. [1 ]
Dwivedi, Y. [1 ]
Rai, S. B. [1 ]
机构：
[1] Banaras Hindu Univ, Laser & Spect Lab, Dept Phys, Varanasi 221005, Uttar Pradesh, India
来源：
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 2012年 / 91卷
关键词：
Luminescence; Rare earth ions; Wide band gap semiconductor; ZnO; Spectroscopy; Eu2O3; COOPERATIVE ENERGY-TRANSFER; RED LUMINESCENCE; UP-CONVERSION; EU3+;
D O I：
10.1016/j.saa.2012.01.073
中图分类号：
O433 [光谱学];
学科分类号：
0703 ; 070302 ;
摘要：
Eu and Eu:Yb codoped ZnO nanocrystals embedded in B2O3 glass matrix were synthesized and their structural, optical properties were discussed. On excitation with 532 nm laser radiation intense orange/red emissions from Eu3+ ions were observed. The fluorescence intensity was found to enhance on annealing. Frequency upconversion emissions from Eu3+ ions were observed in presence of Yb3+ ions on excitation with NIR (976 nm) laser. The enhancement in emission intensity was explained and the photo-physics involved is linked with the unique structural properties of the crystallites formed. Ion interactions and the different energy transfer parameters were also calculated. (C) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码：217 / 221
页数：5
相关论文
共 13 条
  • [1] ENERGY-TRANSFER KINETICS IN DISORDERED-SYSTEMS
    BURSHTEIN, AI
    [J]. JOURNAL OF LUMINESCENCE, 1985, 34 (04) : 167 - 188
  • [2] Cooperative Energy Transfer Up-Conversion and Quantum Cutting Down-Conversion in Yb3+:TbF3 Nanocrystals Embedded Glass Ceramics
    Chen, Daqin
    Yu, Yunlong
    Wang, Yuansheng
    Huang, Ping
    Weng, Fangyi
    [J]. JOURNAL OF PHYSICAL CHEMISTRY C, 2009, 113 (16) : 6406 - 6410
  • [3] Stokes and anti-Stokes luminescence from Eu/Yb:BaB4O7 nanocrystals
    Dwivedi, Y.
    Rai, D. K.
    Rai, S. B.
    [J]. OPTICAL MATERIALS, 2010, 32 (09) : 913 - 919
  • [4] Energy transfer in Er:Eu:Yb co-doped tellurite glasses: Yb as enhancer and quencher
    Dwivedi, Y.
    Rai, Anita
    Rai, S. B.
    [J]. JOURNAL OF LUMINESCENCE, 2009, 129 (06) : 629 - 633
  • [5] Blue and Red Luminescence from Europium-Doped Barium TetraBorate Crystals
    Dwivedi, Yashashchandra
    Rai, Shyam Bahadur
    [J]. JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2010, 93 (03) : 727 - 731
  • [6] Judd B. R., 1980, ACS SYM SER, V131, P267
  • [7] FLUORESCENCE OF EUROPIUM(III) TRAPPED IN SILICA-GEL GLASS AS A PROBE FOR CATION BINDING AND FOR CHANGES IN CAGE SYMMETRY DURING GEL DEHYDRATION
    LEVY, D
    REISFELD, R
    AVNIR, D
    [J]. CHEMICAL PHYSICS LETTERS, 1984, 109 (06) : 593 - 597
  • [8] RARE-EARTHS IN GLASS TECHNOLOGY
    LOCARDI, B
    GUADAGNINO, E
    [J]. MATERIALS CHEMISTRY AND PHYSICS, 1992, 31 (1-2) : 45 - 49
  • [9] Infrared-to-visible Eu3+ energy upconversion due to cooperative energy transfer from an Yb3+ ion pair in a sol-gel processed multi-component silica glass
    Maciel, GS
    Biswas, A
    Prasad, PN
    [J]. OPTICS COMMUNICATIONS, 2000, 178 (1-3) : 65 - 69
  • [10] Muthu S., United State patent, Patent No. [US6411046 B1, 6411046]
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