Chemical Research in Chinese Universities ›› 2014, Vol. 30 ›› Issue (6): 879-884.doi: 10.1007/s40242-014-4252-2

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Electrospinning Synthesis and Photoluminescence Properties of SnO2:xEu3+ Nanofibers

GU Yipeng1, SHEN Hongzhi2, LI Liang3,4, LIU Wenqiang1, WANG Wenquan1, XU Dapeng1,4   

  1. 1. Key Laboratory of Physics and Technology for Advanced Batteries, Ministry of Education, Changchun 130012, P. R. China;
    2. College of Electronic Science & Engineering, Changchun 130012, P. R. China;
    3. State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, P. R. China;
    4. College of Physics, Jilin University, Changchun 130012, P. R. China
  • Received:2014-07-07 Revised:2014-09-15 Online:2014-12-01 Published:2014-09-22
  • Contact: XU Dapeng E-mail:xudp@jlu.edu.cn
  • Supported by:

    Supported by the National Foundation for Fostering Talents of Basic Science, China(No.J1103202) and the National Natural Science Foundation of China(No.11304113).

Abstract:

SnO2:xEu3+(x=0, 1%, 3%, 5%, molar fraction) fibers were synthesized by electrospinning technology. The size of the as-prepared fibers is relatively uniform and the average diameter is about 200 nm with a large draw ratio. The as-prepared Eu3+ doped SnO2 nanofibers have a rutile structure and consist of crystallite grains with an average size of about 10 nm. A slight red shift of the A1g and B2g vibration modes and an additional peak at 288 nm were observed in the Raman spectra of the nanofibers. The energies of bandgaps of the SnO2 nanofiber with Eu doping of 1% and 3% are 2.64 eV, and the energy of bandgap is 2.94 eV with Eu doping of 5%(molar fraction). There is only orange emission(5D07F1 magnetic dipole transition) for Eu doped SnO2 nanofibers, and no red emission could be observed. The orange emission upon indirect excitation splits into three peaks and the peak intensity at the excitation wavelength of 275 nm is higher than that at the excitation wavelength of 488 nm.

Key words: Electrospinning, SnO2, Eu3+ doping, Nanofiber, Photoluminescence