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Lead-Free Ferroelectric Thin Films

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Handbook of Sol-Gel Science and Technology

Abstract

Sol-gel-derived ferroelectric thin films, with lead zirconate titanate (Pb(Zr,Ti)O3, PZT) as one of the most widely studied materials, have been investigated for a wide range of applications, including microelectromechanical systems. The research of environment-friendly alternatives to lead-based materials, to a large extent driven by legislation, has been mainly conducted in the domain of bulk ceramics; however, environment-friendly alternatives to lead-based ferroelectric thin films have been also studied in recent years. Three most studied groups of lead-free materials include materials based on sodium potassium niobate solid solution ((K0.5Na0.5NbO3), KNN), bismuth sodium titanate (Bi0.5Na0.5TiO3, BNT), and barium titanate – such as barium zirconate titanate–barium calcium titanate solid solution (Ba(Zr0.2Ti0.8)O3-(Ba0.7Ca0.3)TiO3, BZT-BCT). In the present review, each group is discussed in terms of material properties, sol-gel processing, and thin film crystallization, microstructure, and functional properties.

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Acknowledgments

This work was supported by the Slovenian Research Agency program P2-0105.

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Author notes

  1. Alja Kupec

    Present address: Faculty of Mechanical Engineering, Laboratory for Tribology and Interface Nanotechnology, University of Ljubljana, Bogišičeva 8, 1000, Ljubljana, Slovenia

Authors and Affiliations

  1. Electronic Ceramics Department, Jožef Stefan Institute, Jamova cesta 39, 1000, Ljubljana, Slovenia

    Barbara Malič, Alja Kupec, Katarina Vojisavljević & Tanja Pečnik

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  1. Barbara Malič
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  2. Alja Kupec
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  3. Katarina Vojisavljević
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  4. Tanja Pečnik
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Correspondence to Barbara Malič .

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Editors and Affiliations

  1. Materials Science and Engineering, Rutgers University, Piscataway, NJ, USA

    Lisa Klein

  2. Instituto de Cerámica y Vidrio, Consejo Superior de Investigaciones Científicas (CSIC), Madrid, Spain

    Mario Aparicio

  3. Department of Chemistry, Lehman College, The City University of New York, Bronx, NY, USA

    Andrei Jitianu

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Malič, B., Kupec, A., Vojisavljević, K., Pečnik, T. (2018). Lead-Free Ferroelectric Thin Films. In: Klein, L., Aparicio, M., Jitianu, A. (eds) Handbook of Sol-Gel Science and Technology. Springer, Cham. https://doi.org/10.1007/978-3-319-32101-1_19

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