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Influence of PbO phase content on structural and optical properties of PZT nanopowders

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Abstract

Nanocrystalline lead zirconate titanate (PZT) powders were synthesized via a modified Pechini method. The effect of heat treatment temperature on the microstructural properties was studied using X-ray powder diffraction. The explored temperatures were identified from the TGA/DSC measurement and it is found that the crystallization starts from 550 °C. Rietveld refinement was applied to study structural changes and to quantitatively assess the fractional content of lead monoxide, identified in nano-PZT powders. Lebail method was carried out to the XRD pattern to accurately determine the peak broadening and position. Size-Strain Plot and various Williamson-Hall methods were used to calculate the lattice microstrain and crystallite size. The minimum strain was noticed in the pure tetragonal-PZT sample. TEM technique was also employed to study nanopowders and to confirm the formation of small-sized particles. The energy band gap was determined by diffused reflectance measurements and found to range from 3.17 to 3.29 eV.

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Correspondence to K. H. Omran.

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Omran, K.H., El-sadek, M.S.A., Mostafa, M. et al. Influence of PbO phase content on structural and optical properties of PZT nanopowders. Appl Nanosci 10, 2315–2327 (2020). https://doi.org/10.1007/s13204-020-01390-2

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  • DOI: https://doi.org/10.1007/s13204-020-01390-2

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