Synthesis and luminescence properties of Eu(III)-doped silica nanorods based on the sol–gel process

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• 作者：Chunming Lin (1)
  Yanhua Song (1)
  Fei Gao (1)
  Hongguang Zhang (1)
  Ye Sheng (1)
  Keyan Zheng (1)
  Zhan Shi (2)
  Xuechun Xu (3)
  Haifeng Zou (1)
  
• 关键词：Silica nanorods ; Sol–gel method ; Luminescence ; Europium
• 刊名：Journal of Sol-Gel Science and Technology
• 出版年：2014
• 出版时间：March 2014
• 年：2014
• 卷：69
• 期：3
• 页码：536-543
• 全文大小：1,369 KB
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• 作者单位：Chunming Lin (1)
  Yanhua Song (1)
  Fei Gao (1)
  Hongguang Zhang (1)
  Ye Sheng (1)
  Keyan Zheng (1)
  Zhan Shi (2)
  Xuechun Xu (3)
  Haifeng Zou (1)
  
  1. College of Chemistry, Jilin University, Changchun, 130012, People’s Republic of China
  2. State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012, People’s Republic of China
  3. College of Earth Science, Jilin University, Changchun, 130012, People’s Republic of China
  
• ISSN：1573-4846

文摘

Uniform Eu3+-doped SiO2 nanorods were synthesized through a simple sol–gel method using cetyltrimethylammonium bromide (CTAB) as surfactant template and tetraethylorthosilicate as silicon source. X-ray diffraction, energy-dispersive X-ray spectroscopy, Fourier transform infrared spectrum, scanning electron microscope (SEM), transmission electron microscopy, and photoluminescence spectra were employed to characterize the products in detail. The nanorods have good uniformity and their diameters and lengths are in the range of 200-00 and 500-00?nm through the SEM images, respectively. The formation of the nanorods was studied by taking SEM images after different aging time. The experimental results indicate that CTAB plays a crucial role in the formation of the silica nanorods. The luminescence of Eu3+-doped SiO2 nanorods is dominated by red-emission around 612?nm due to intra-atomic 4f?→?f (5D0?→?sup class="a-plus-plus">7F2) transition of Eu3+ ions. Furthermore, the effect of doping concentrations of Eu3+ ions on the luminescence was investigated.