Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Effect of Laser Beam on Structural, Optical, and Electrical Properties of BaTiO3 Nanoparticles during Sol-Gel Preparation

  • Mostafa, Massaud (Laser Tech. & Environment Lab., Physics Department, Faculty of Science, South Valley University) ;
  • Ebnalwaled, Khaled (Electronics & Nano Devices Lab., Physics Department, Faculty of Science, South Valley University) ;
  • Saied, Hussien A. (Physics Department, Faculty of Science, South Valley University) ;
  • Roshdy, Reham (Laser Tech. & Environment Lab., Physics Department, Faculty of Science, South Valley University)
  • Received : 2018.07.30
  • Accepted : 2018.09.28
  • Published : 2018.11.30
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Abstract

This work concentrated on the effect of different laser beams on the microstructure and dielectric properties of $BaTiO_3$ nanoparticles at different calcinations times during the gelling preparation step. The nanoparticles were prepared by the sol-gel method. A green (1000 mW, 532 nm) and red laser beam (500 mW, 808 nm), were applied vertically at the center of stirring raw materials. The samples were sintered at $1000^{\circ}C$ for 2, 4, and 6 h. X-ray diffraction (XRD) analysis showed that samples prepared under the green laser have the highest purity. The FT-IR spectra showed that the stretching and bending vibrations of TiO bond without any other bonds, which are compatible to the X-ray diffraction (XRD) results. Samples were characterized by transmission electron microscopy (TEM), Scan electron microscopy (SEM), and UV-Visible spectrophotometer. Characterization showed the samples prepared under the green laser to have the highest particle size (~ 50 nm) and transparency for all sintering durations. Laser beam effects on electrical characterization were studied. BT nanoparticles prepared under the green laser show the higher dielectric constant, which was found to increase with sintering temperature.

Keywords

References

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