Optical and fluorescent properties of Y2O3 sol-gel planar waveguides containing Tb3+ doped nanocrystals

Y. C. Wu, C. Garapon, R. Bazzi, A. Pillonnet, O. Tillement, J. Mugnier

研究成果: Article同行評審

20 引文 斯高帕斯(Scopus)

摘要

Terbium doped Y2O3 planar waveguides were fabricated by sol-gel process and dip-coating using yttrium acetate as precursor. Two different doping modes were compared, i.e. introduction in the sol of dispersed Tb3+ions from dissolved Tb(NO3)3, or of nanoparticles of Tb2O3 or [Y2O3:50% Tb] from an alcoholic suspension. The chemical and nanostructural properties were analyzed by infrared spectroscopy, transmission electron microscopy and X-ray diffraction. The Tb3+ fluorescence properties were studied as a function of temperature and atmosphere of the thermal treatments, and of the Tb3+ concentration. The fluorescence properties are discussed in relation to the quenching mechanisms induced by Tb4+ transformation, residual OH groups, and crystallites size and structure. Optical propagation losses of the Tb doped Y2O3 planar waveguides related to the doping modes and Tb3+ concentration are presented. Doping sol-gel films by nanoparticles is shown to be a valuable alternative to the conventional doping from dissolved terbium salt.

原文English
頁(從 - 到)697-704
頁數8
期刊Applied Physics A: Materials Science and Processing
87
發行號4
DOIs
出版狀態Published - 2007 六月

All Science Journal Classification (ASJC) codes

  • 化學 (全部)
  • 材料科學(全部)

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