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Adjustment of morphological and dielectric properties of ZnTiO3 nanocrystalline using Al2O3 nanoparticles

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Abstract

The effect of Al2O3 nanoparticles on the crystalline phase, morphology and adjustment of dielectric properties of ZnTiO3 nano-powder has been investigated. The structural and morphological properties were investigated by X-ray diffraction (XRD), field emission-scanning electron microscope (FE-SEM) and Fourier Transform infra-red (FTIR) spectroscopy. The average particle size of the rhombohedral perovskite structure ZnTiO3 and Al2O3/ZnTiO3 is about 61 nm and 53 nm, respectively. Introduction of Al2O3 NPs induces structural and morphological modifications, causes an adjustment in pore structure and textural characteristics of ZnTiO3 nano-powder. In addition, the dielectric results have appeared that the dielectric constant and dielectric loss, [tan(δ)] are decreased with introducing the Al2O3 NPs in the crystalline nano-sized ZnTiO3 powders. The gained results are presented in detail.

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Acknowledgements

The authors are much grateful to the help and support of the Science and Technology Development Fund (STDF), Egypt for financial support of the research activities related to project; Project ID 25776.

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Authors and Affiliations

  1. Physics Research Division, Solid State Physics Department, National Research Centre, 33 El Bohouth St, Dokki, Giza, 12622, Egypt

    Amany M. El Nahrawy & Ali B. Abou Hammad

  2. Physics Research Division, Spectroscopy Department, National Research Centre, 33 El Bohouth St., Dokki, P.O. 12622, Giza, Egypt

    Ahmed M. Bakr

  3. Thin Film and Electron Microscope Department, Physics research division, National Research Center, 33 ElBehouth St., Dokki, Giza, 12622, Egypt

    Ahmed R. Wassel

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  1. Amany M. El Nahrawy
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  2. Ali B. Abou Hammad
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Correspondence to Amany M. El Nahrawy.

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Nahrawy, A.M.E., Hammad, A.B.A., Bakr, A.M. et al. Adjustment of morphological and dielectric properties of ZnTiO3 nanocrystalline using Al2O3 nanoparticles. Appl. Phys. A 125, 54 (2019). https://doi.org/10.1007/s00339-018-2350-6

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