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Ferroelectric Mesocrystalline BaTiO3/SrTiO3Nanocomposites with Enhanced Dielectric and PiezoelectricResponses.

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Title: Ferroelectric Mesocrystalline BaTiO3/SrTiO3Nanocomposites with Enhanced Dielectric and PiezoelectricResponses.
Authors: Dengwei Hu1, Hao Ma1, Yasuhiro Tanaka1, Lifang Zhao1, Qi Feng1
Source: Chemistry of Materials. Jul2015, Vol. 27 Issue 14, p4983-4994. 12p.
Subjects: Ferroelectricity, Nanocomposite materials, Barium titanate, Dielectrics, Piezoelectricity, Chemical processes
Abstract: A platelike mesocrystallineBaTiO3/SrTiO3(BT/ST) nanocomposite is preparedvia a clever two-step solvothermal soft chemical process. First aprotonated titanate H1.07Ti1.73O4·nH2O (HT) crystal with a layeredstructure and platelike morphology is solvothermally treated in aBa(OH)2solution to generate a homogeneous platelike BaTiO3/HT (BT/HT) nanocomposite. Second the generated BT/HT nanocompositeis solvothermally treated in a Sr(OH)2solution to generatethe mesocrystalline BT/ST nanocomposite with platelike particle morphology.The transformation reactions from the HT precursor to the mesocrystallineBT/ST nanocomposite are topochemical conversion reactions, and theformed BT/ST nanocomposite is constructed from well-aligned BT andST nanocrystals in the same crystal-axis orientation. The BT/ST nanocompositeannealed at 900 °C shows a ferroelectric behavior and drasticallyenhanced piezoelectric and dielectric responses owing to the introductionof a lattice strain at a three-dimensional heteroepitaxial interfacebetween the BT and ST nanocrystals in the mesocrystal. The nanostructureof the BT/ST mesocrystal is suitable for simultaneous applicationof the strain engineering and the orientation engineering to develophigh performance piezoelectric and dielectric materials. [ABSTRACT FROM AUTHOR]
Copyright of Chemistry of Materials is the property of American Chemical Society and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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DbLabel: Engineering Source
An: 108612656
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  Data: Ferroelectric Mesocrystalline BaTiO3/SrTiO3Nanocomposites with Enhanced Dielectric and PiezoelectricResponses.
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  Data: <searchLink fieldCode="AR" term="%22Dengwei+Hu%22">Dengwei Hu</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Hao+Ma%22">Hao Ma</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Yasuhiro+Tanaka%22">Yasuhiro Tanaka</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Lifang+Zhao%22">Lifang Zhao</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Qi+Feng%22">Qi Feng</searchLink><relatesTo>1</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Chemistry+of+Materials%22">Chemistry of Materials</searchLink>. Jul2015, Vol. 27 Issue 14, p4983-4994. 12p.
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  Data: <searchLink fieldCode="DE" term="%22Ferroelectricity%22">Ferroelectricity</searchLink><br /><searchLink fieldCode="DE" term="%22Nanocomposite+materials%22">Nanocomposite materials</searchLink><br /><searchLink fieldCode="DE" term="%22Barium+titanate%22">Barium titanate</searchLink><br /><searchLink fieldCode="DE" term="%22Dielectrics%22">Dielectrics</searchLink><br /><searchLink fieldCode="DE" term="%22Piezoelectricity%22">Piezoelectricity</searchLink><br /><searchLink fieldCode="DE" term="%22Chemical+processes%22">Chemical processes</searchLink>
– Name: Abstract
  Label: Abstract
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  Data: A platelike mesocrystallineBaTiO3/SrTiO3(BT/ST) nanocomposite is preparedvia a clever two-step solvothermal soft chemical process. First aprotonated titanate H1.07Ti1.73O4·nH2O (HT) crystal with a layeredstructure and platelike morphology is solvothermally treated in aBa(OH)2solution to generate a homogeneous platelike BaTiO3/HT (BT/HT) nanocomposite. Second the generated BT/HT nanocompositeis solvothermally treated in a Sr(OH)2solution to generatethe mesocrystalline BT/ST nanocomposite with platelike particle morphology.The transformation reactions from the HT precursor to the mesocrystallineBT/ST nanocomposite are topochemical conversion reactions, and theformed BT/ST nanocomposite is constructed from well-aligned BT andST nanocrystals in the same crystal-axis orientation. The BT/ST nanocompositeannealed at 900 °C shows a ferroelectric behavior and drasticallyenhanced piezoelectric and dielectric responses owing to the introductionof a lattice strain at a three-dimensional heteroepitaxial interfacebetween the BT and ST nanocrystals in the mesocrystal. The nanostructureof the BT/ST mesocrystal is suitable for simultaneous applicationof the strain engineering and the orientation engineering to develophigh performance piezoelectric and dielectric materials. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
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  Data: <i>Copyright of Chemistry of Materials is the property of American Chemical Society and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1021/acs.chemmater.5b01368
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      – Code: eng
        Text: English
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        PageCount: 12
        StartPage: 4983
    Subjects:
      – SubjectFull: Ferroelectricity
        Type: general
      – SubjectFull: Nanocomposite materials
        Type: general
      – SubjectFull: Barium titanate
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      – SubjectFull: Dielectrics
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      – SubjectFull: Piezoelectricity
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      – SubjectFull: Chemical processes
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      – TitleFull: Ferroelectric Mesocrystalline BaTiO3/SrTiO3Nanocomposites with Enhanced Dielectric and PiezoelectricResponses.
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            NameFull: Dengwei Hu
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            NameFull: Hao Ma
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            NameFull: Yasuhiro Tanaka
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            NameFull: Lifang Zhao
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            NameFull: Qi Feng
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              M: 07
              Text: Jul2015
              Type: published
              Y: 2015
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