高等学校化学学报

高等学校化学学报

• 研究论文 • 上一篇    下一篇

Gd2O3∶Eu3+纳米棒的制备与发光性能

张颂, 刘桂霞, 董相廷, 王进贤, 李若兰   

  1. 长春理工大学化学与环境工程学院, 长春 130022
  • 收稿日期:2008-05-04 修回日期:1900-01-01 出版日期:2009-01-10 发布日期:2009-01-10
  • 通讯作者: 刘桂霞

Preparation and Photoluminescence Properties of Gd2O3∶Eu3+ Nanorods

ZHANG Song, LIU Gui-Xia*, DONG Xiang-Ting, WANG Jin-Xian, LI Ruo-Lan   

  1. School of Chemistry and Environmental Engineering, Changchun University of Science and Technology, Changchun 130022, China
  • Received:2008-05-04 Revised:1900-01-01 Online:2009-01-10 Published:2009-01-10
  • Contact: LIU Gui-Xia

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摘要： 在表面活性剂辅助的水热条件下合成出尺寸均一的Gd2O3∶Eu3+纳米棒, 对其结构和荧光性质进行了表征, 并对其生长机理进行了初步讨论. XRD结果表明, 水热前驱体样品为六方晶相的Gd(OH)3, 经过灼烧之后样品为立方相的Gd2O3. TEM照片表明, 所得样品为直径60 nm、长度约600 nm的纳米棒. 荧光光谱表明, 在波长为254 nm 的紫外光激发下, Gd2O3∶Eu3+纳米棒产生了不同于前驱体的特征红光发射, 对应于Eu3+ 的5D0-7F2跃迁, 表明Gd2O3是红色发光材料的良好基质.

关键词: Gd2O3∶Eu3+, 纳米棒, 一维材料, 光致发光

Abstract: Gd2O3∶Eu3+ nanorods were prepared via surfactant-assisted hydrothermal method. The structure and photoluminescence properties of the nanorods were characterized, and the growth mechanism was discussed. XRD patterns show that the precursors are hexagonal phase Gd(OH)3 crystals, and the samples calcined at 800 ℃ are cubic Gd2O3. TEM images indicate that the samples are nanorods with a diameter of 60 nm and a length of 600 nm. Photoluminescence measurements show that the Gd2O3∶Eu3+ nanorods emit Eu3+ characteristic red-light due to 5D0-7FJ transitions under 254 nm light excitation, which is different from that of the precursor. The results indicate that Gd2O3 nanorod is a candidate as host material for Eu3+ luminescence.

Key words: Gd2O3∶Eu3+, Nanorod, One-dimensional material, Photoluminescence

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