Polarization reversal in BaTiO3 nanostructures synthesized by microwave-assisted hydrothermal method

Ivan Velasco-Davalos; Fabian Ambriz-Vargas; Carlos Gómez-Yáñez; Reji Thomas; Andreas Ruediger

doi:10.1016/j.jallcom.2016.01.145

Polarization reversal in BaTiO₃ nanostructures synthesized by microwave-assisted hydrothermal method

Ivan Velasco-Davalos, Fabian Ambriz-Vargas, Carlos Gómez-Yáñez, Reji Thomas, Andreas Ruediger

Research output: Contribution to journal › Article › peer-review

12 Scopus citations

Abstract

Ferroelectric BaTiO₃ nanostructures and thin films were deposited by a microwave assisted hydrothermal process at low temperatures (<250 °C) on metallic Pt/Al₂O₃/SiO₂/Si and Nb:SrTiO₃ (100) substrates. TiO₂ nanoparticles dispersed in the Ba(OH)₂ alkaline solution are used as the precursors withoutany mineralizers. The incorporation of H₂O₂ into precursor solution served as a strong oxidant and catalyst for the uniform nucleation of BaTiO₃ on the substrate surface. The polycrystalline and epitaxial nature of the films were confirmed by atomic force microscopy and x-ray diffraction studies. We report the ferroelectric behavior of BaTiO₃ films on Nb:SrTiO₃ (100) substrates by piezoresponse force microscopy.

Original language	English
Pages (from-to)	268-274
Number of pages	7
Journal	Journal of Alloys and Compounds
Volume	667
DOIs	https://doi.org/10.1016/j.jallcom.2016.01.145
State	Published - 15 May 2016
Externally published	Yes

Keywords

BaTiO
Ferroelectric properties
Hydrothermal synthesis
Microwave-assisted hydrothermal
Piezo force microscopy (PFM)

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10.1016/j.jallcom.2016.01.145

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title = "Polarization reversal in BaTiO3 nanostructures synthesized by microwave-assisted hydrothermal method",

abstract = "Ferroelectric BaTiO3 nanostructures and thin films were deposited by a microwave assisted hydrothermal process at low temperatures (<250 °C) on metallic Pt/Al2O3/SiO2/Si and Nb:SrTiO3 (100) substrates. TiO2 nanoparticles dispersed in the Ba(OH)2 alkaline solution are used as the precursors withoutany mineralizers. The incorporation of H2O2 into precursor solution served as a strong oxidant and catalyst for the uniform nucleation of BaTiO3 on the substrate surface. The polycrystalline and epitaxial nature of the films were confirmed by atomic force microscopy and x-ray diffraction studies. We report the ferroelectric behavior of BaTiO3 films on Nb:SrTiO3 (100) substrates by piezoresponse force microscopy.",

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author = "Ivan Velasco-Davalos and Fabian Ambriz-Vargas and Carlos G{\'o}mez-Y{\'a}{\~n}ez and Reji Thomas and Andreas Ruediger",

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doi = "10.1016/j.jallcom.2016.01.145",

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T1 - Polarization reversal in BaTiO3 nanostructures synthesized by microwave-assisted hydrothermal method

AU - Velasco-Davalos, Ivan

AU - Ambriz-Vargas, Fabian

AU - Gómez-Yáñez, Carlos

AU - Thomas, Reji

AU - Ruediger, Andreas

PY - 2016/5/15

Y1 - 2016/5/15

N2 - Ferroelectric BaTiO3 nanostructures and thin films were deposited by a microwave assisted hydrothermal process at low temperatures (<250 °C) on metallic Pt/Al2O3/SiO2/Si and Nb:SrTiO3 (100) substrates. TiO2 nanoparticles dispersed in the Ba(OH)2 alkaline solution are used as the precursors withoutany mineralizers. The incorporation of H2O2 into precursor solution served as a strong oxidant and catalyst for the uniform nucleation of BaTiO3 on the substrate surface. The polycrystalline and epitaxial nature of the films were confirmed by atomic force microscopy and x-ray diffraction studies. We report the ferroelectric behavior of BaTiO3 films on Nb:SrTiO3 (100) substrates by piezoresponse force microscopy.

AB - Ferroelectric BaTiO3 nanostructures and thin films were deposited by a microwave assisted hydrothermal process at low temperatures (<250 °C) on metallic Pt/Al2O3/SiO2/Si and Nb:SrTiO3 (100) substrates. TiO2 nanoparticles dispersed in the Ba(OH)2 alkaline solution are used as the precursors withoutany mineralizers. The incorporation of H2O2 into precursor solution served as a strong oxidant and catalyst for the uniform nucleation of BaTiO3 on the substrate surface. The polycrystalline and epitaxial nature of the films were confirmed by atomic force microscopy and x-ray diffraction studies. We report the ferroelectric behavior of BaTiO3 films on Nb:SrTiO3 (100) substrates by piezoresponse force microscopy.

KW - BaTiO

KW - Ferroelectric properties

KW - Hydrothermal synthesis

KW - Microwave-assisted hydrothermal

KW - Piezo force microscopy (PFM)

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U2 - 10.1016/j.jallcom.2016.01.145

DO - 10.1016/j.jallcom.2016.01.145

M3 - Artículo

SN - 0925-8388

VL - 667

SP - 268

EP - 274

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

ER -

Polarization reversal in BaTiO₃ nanostructures synthesized by microwave-assisted hydrothermal method

Abstract

Keywords

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