高等学校化学学报 ›› 2001, Vol. 22 ›› Issue (5): 821.

• 研究快报 • 上一篇    下一篇

掺Eu及Ag微粒的SiO2凝胶在多孔阳极氧化铝中的荧光增强

史彦莉, 张校刚, 力虎林   

  1. 兰州大学化学系, 兰州 730000
  • 收稿日期:2000-08-02 出版日期:2001-05-24 发布日期:2001-05-24
  • 通讯作者: 力虎林(1936年出生),男,教授,博士生导师,从事电化学、材料化学基础和应用研究.
  • 基金资助:

    国家自然科学基金重大项目(批准号:69890220)资助

Enhanced Photoluminescence of Eu, Ag-doped SiO2 gel Based on AAO

SHI Yan-Li, ZHANG Xiao-Gang, LI Hu-Lin   

  1. Department of Chemistry, Lanzhou University, Lanzhou 730000, China
  • Received:2000-08-02 Online:2001-05-24 Published:2001-05-24

关键词: 荧光增强, 多孔阳极氧化铝, 溶胶-凝胶

Abstract: Porous alumina covered with europium doped silica sol-gel film exhibited strong Eu 2+ related photoluminescence at 396 nm at room temperature( λex=310 nm). The intensity of the photoluminescence can be increased by using porous matrix, thicker gel film and lower annealed temperature due to more photoactive species on the surface. Ag particles can improve the photoluminescence by affecting the surrounding electron field of Eu 2+.

Key words: Enhanced photoluminescence, Porous anodic alumina, Sol-gel

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