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J. Zhang, M. J. Li, Z. C. Feng, J. Chen and C. Li, “UV Raman Spectroscopic Study on TiO2. I. Phase Transformation at the Surface and in the Bulk,” Journal of Physical Chemistry B, Vol. 110, No. 2, 2006, pp. 927-935.

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• TITLE: Synthesis of Yb3+ Doped TiO2 Nano Particles Powder as IR Filter via Sol-Gel

  AUTHORS: Mohammed A. Hamza, Asmaa Sh. Khalil, Hanna M. Yaseen

  KEYWORDS: Sol-Gel; Nano Technology; TiO2; MID IR Optical Filter

  JOURNAL NAME: Advances in Materials Physics and Chemistry, Vol.3 No.4, August 21, 2013

  ABSTRACT: Ytterbium doped TiO2 nano-particles were prepared via Sol-Gel Technique under varying conditions to investigate the effects of Ytterbium ion doping on the Titania optical properties in MID IR range. X-ray diffraction analyses show that prepared Yb3+ doped TiO2 samples have polycrystalline structure in Anatas phase. FTIR spectrums for pure and doped samples after annealing process show a single transmission peak at wave number around 1145 cm-1. Transmission rate of this peak depends on Yb3+ concentrations and its value rises from 1.82% (for pure TiO2) to 58.1% (for doped with 1.13 wt% Yb3+). Slightly peak shift occurs at a lower doping rate with no further response to higher concentration rate. FTIR spectra gives a good indication in direction of preparation of optical band-pass filter at a wavelength around 8.733 μm (~1145 cm-1).