Visible photoluminescence of ZnO nanoparticles dispersed in highly transparent MgF2 thin-films via sol-gel process

被引：79
作者：
Fujihara, S [1 ]
Naito, H [1 ]
Kimura, T [1 ]
机构：
[1] Keio Univ, Fac Sci & Technol, Dept Appl Chem, Kohoku Ku, Yokohama, Kanagawa 2238522, Japan
来源：
THIN SOLID FILMS | 2001年 / 389卷 / 1-2期
关键词：
coatings; fluorides; luminescence; nanostructures; zinc oxide;
D O I：
10.1016/S0040-6090(01)00893-8
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
ZnO/MgF2 nanocomposite thin films, where ZnO nanoparticles were dispersed in an MgF2 matrix, were prepared by a sol-gel method using metal acetates, isopropanol, trifluoroacetic acid, monoethanolamine and water as starting materials. The particle size of ZnO was approximately 6.2 nm, showing quantum size effects in the absorption edge measurement. Green photoluminescent (PL) emission from the films was observed at room temperature. The emission intensity was found to be greatly dependent on heat-treatment temperature and time. By optimizing the heating conditions, the film with high transparency and high PL intensity was obtained. Influence of the heating conditions on the formation of the ZnO nanoparticles and the green emission was discussed. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
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页码：227 / 232
页数：6
相关论文
共 28 条
  • [1] [Anonymous], 2000, CHARACTERIZATION NAN
  • [2] PREPARATION AND CHARACTERIZATION OF QUANTUM SIZE ZINC-OXIDE - A DETAILED SPECTROSCOPIC STUDY
    BAHNEMANN, DW
    KORMANN, C
    HOFFMANN, MR
    [J]. JOURNAL OF PHYSICAL CHEMISTRY, 1987, 91 (14) : 3789 - 3798
  • [3] Influence of solution composition on the formation of SiO2/LaF3 composites in the sol-gel process
    Fujihara, S
    Kato, T
    Kimura, T
    [J]. JOURNAL OF MATERIALS SCIENCE, 2000, 35 (11) : 2763 - 2767
  • [4] Preparation and characterization of MgF2 thin film by a trifluoroacetic acid method
    Fujihara, S
    Tada, M
    Kimura, T
    [J]. THIN SOLID FILMS, 1997, 304 (1-2) : 252 - 255
  • [5] Controlling factors for the conversion of trifluoroacetate sols into thin metal fluoride coatings
    Fujihara, S
    Tada, M
    Kimura, T
    [J]. JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY, 2000, 19 (1-3) : 311 - 314
  • [6] Fluorine doping in transparent conductive ZnO thin films by a sol-gel method using trifluoroacetic acid
    Fujihara, S
    Kusakado, J
    Kimura, T
    [J]. JOURNAL OF MATERIALS SCIENCE LETTERS, 1998, 17 (09) : 781 - 783
  • [7] Sample preparation and photoluminescence of ZnO particles embedded in thin alkali halide crystals
    Harada, Y
    Kondo, H
    Ichimura, N
    Hashimoto, S
    [J]. JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS, 1999, 38 (11B): : L1318 - L1320
  • [8] DEPOSITION OF BORON DOPED ZINC-OXIDE FILMS AND THEIR ELECTRICAL AND OPTICAL-PROPERTIES
    HU, JH
    GORDON, RG
    [J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1992, 139 (07) : 2014 - 2022
  • [9] An in situ IR study of the thermal decomposition of trifluoroacetic acid
    Jollie, DM
    Harrison, PG
    [J]. JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 2, 1997, (08): : 1571 - 1575
  • [10] PHOTOPHYSICS AND PHOTOCHEMISTRY OF QUANTIZED ZNO COLLOIDS
    KAMAT, PV
    PATRICK, B
    [J]. JOURNAL OF PHYSICAL CHEMISTRY, 1992, 96 (16) : 6829 - 6834
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