Crystal structure, phase transitions and photoferroelectric properties of KNbO3-based lead-free ferroelectric ceramics: a brief review

WANG, Dawei, WANG, Ge, LU, Zhilun, AL-JLAIHAWI, Zaid and FETEIRA, Antonio (2020). Crystal structure, phase transitions and photoferroelectric properties of KNbO3-based lead-free ferroelectric ceramics: a brief review. Frontiers in Materials, 7, p. 91.

[img]
Preview
PDF
Feteira-CrystalStructurePhase(VoR).pdf - Published Version
Creative Commons Attribution.

Download (12MB) | Preview
Official URL: https://www.frontiersin.org/articles/10.3389/fmats...
Open Access URL: https://www.frontiersin.org/articles/10.3389/fmats... (Published)
Link to published version:: https://doi.org/10.3389/fmats.2020.00091
Related URLs:

    Abstract

    Ferroelectric KNbO3 (KN) ceramics were first fabricated in the 1950s, however, their use in commercial technical applications has been hampered by inherently challenging processing difficulties. In the early 1990s, the interest in KN ceramics was revived by the pursuit of Pb-free piezoceramics. More recently the search for inexpensive photovoltaic materials alternative to Si prompted bandgap engineering studies in KN-based solid solutions. If the ferroelectric and piezoelectric properties of KN-based ceramics are now well established, the understanding of chemical doping on the bandgap of KN-based ceramics is still in its infancy. Here we provide a brief review on the current understanding of the structure-property relationships in this class of materials, which successively covers crystal structures, structural phase transitions, lattice dynamics, polarization, solid solutions and bandgap engineering of KN.

    Item Type: Article
    Uncontrolled Keywords: 0912 Materials Engineering; 1007 Nanotechnology
    Identification Number: https://doi.org/10.3389/fmats.2020.00091
    Page Range: p. 91
    SWORD Depositor: Symplectic Elements
    Depositing User: Symplectic Elements
    Date Deposited: 04 May 2020 16:30
    Last Modified: 14 May 2020 10:17
    URI: http://shura.shu.ac.uk/id/eprint/26232

    Actions (login required)

    View Item View Item

    Downloads

    Downloads per month over past year

    View more statistics