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  3. Project H – Stress Modulated Electromechanical Coupling of Lead-Free Ferroelectrics

Project H – Stress Modulated Electromechanical Coupling of Lead-Free Ferroelectrics

Bereichsnavigation: Projects
  • Project A – Electronic Circuits for Piezoelectric Energy Harvesting and Sensor Array Systems
  • Project B – Excitation-Conforming, Shape-Adaptive Mechano-Electrical Energy Conversion
  • Project C – Macroscale Continuum Modeling and FE Simulation of Electromechanical Coupling in Perovskite-Based Materials
  • Project D – Additive Manufacturing of Cellular Lead-Free Ceramics
  • Project E – Lead-Free Perovskite Semiconductors with Tunable Bandgap for Energy Conversion
  • Project F – Room Temperature Aerosol Deposition of Lead-Free Ferroelectric Films for Energy Conversion Systems
  • Project G – Formulation and Crystallization of Perovskite Bearing Glass-Ceramics for Light Management
  • Project H – Stress Modulated Electromechanical Coupling of Lead-Free Ferroelectrics
  • Project I – Growth of Single Crystal Transition Metal Perovskite Chalcogenides
  • Project J – Solution Processed Ferroelectrics in Photovoltaic Devices
  • Project K – Multi-Scale Modeling of Electromechanical Coupling in Perovskite-Based Ferroelectric Materials and Composites
  • Project L – Modeling of Defect and Surface Chemistry of Perovskites

Project H – Stress Modulated Electromechanical Coupling of Lead-Free Ferroelectrics

Photoferroelectrics possess both ferroelectricity as well as light sensitivity, which is interesting for multisource energy harvesting. Despite their potential importance, there remain a number of open questions that will be addressed in this project. Therefore, the aim of this project is to experimentally investigate the influence of stress on photoferroelectrics. Here, compositional band gap tuning will be accomplished through data driven automated powder dosing system to carefully control the composition over a widely material range. Following this, a combination of macroscopic and stress-dependent diffraction, microscopy, and spectroscopy techniques will be employed to experimentally characterize the influence of mechanical stress. Here, collaboration with our partners at the Nagoya Institute of Technology will be important.

 

Principal Investigators

Prof. Dr. Kyle G. Webber
Institute of Glass and Ceramics
Materials Science Department
Friedrich-Alexander-Universität Erlangen-Nürnberg
kyle.g.webber@fau.de
Prof. Dr. Koichi Hayashi
Frontier Research Institute for Materials Science
Nagoya Institute of Technology, Japan

hayashi.koichi@nitech.ac.jp

 

Doctoral Researchers

M.Sc. Viktoria Kraft
Institute of Glass and Ceramics
Materials Science Department
Friedrich-Alexander-Universität Erlangen-Nürnberg
viktoria.kraft@fau.de
M.Sc. Ahmed Gadelmawla
Institute of Glass and Ceramics
Materials Science Department
Friedrich-Alexander-Universität Erlangen-Nürnberg
ahmed.gadelmawla@fau.de

 

Associated Researchers

Dr. Neamul Khansur (FAU): neamul.khansur@fau.de

Dr. Koji Kimura (NITech)

 

Publications Project H

2022

  • Eyoum G., Eckstein U., Rieß K., Gadelmawla A., Springer E., Webber K., Khansur NH.:
    Sintering condition-dependent electromechanical behavior of the lead-free piezoelectric Bi1/2K1/2TiO3
    In: Journal of Materials Science (2022)
    ISSN: 0022-2461
    DOI: 10.1007/s10853-022-07630-w
  • Gadelmawla A., Dobesh D., Eckstein U., Grübl O., Ehmke M., Cicconi MR., Khansur NH., de Ligny D., Webber K.:
    Influence of stress on the electromechanical properties and the phase transitions of lead-free (1-x)Ba(Zr0.2Ti0.8)O-3-x(Ba0.7Ca0.3)TiO3
    In: Journal of Materials Science (2022)
    ISSN: 0022-2461
    DOI: 10.1007/s10853-022-07685-9
  • Gadelmawla A., Eckstein U., Rieß K., Liu YX., Wang K., Li JF., Kakimoto KI., Khansur NH., Webber K.:
    Temperature- and stress-dependent electromechanical properties of phase-boundary-engineered KNN-based piezoceramics
    In: Journal of the American Ceramic Society (2022)
    ISSN: 0002-7820
    DOI: 10.1111/jace.18917
  • Hayashi K., Lederer M., Fukumoto Y., Goto M., Yamamoto Y., Happo N., Harada M., Inamura Y., Oikawa K., Ohoyama K., Wellmann P.:
    Determination of site occupancy of boron in 6H-SiC by multiple-wavelength neutron holography
    In: Applied Physics Letters 120 (2022), Art.Nr.: 132101
    ISSN: 0003-6951
    DOI: 10.1063/5.0080895
  • Yamamoto Y., Kawamura K., Sugimoto H., Gadelmawla A., Kimura K., Happo N., Tajiri H., Webber K., Kakimoto K., Hayashi K.:
    Significant displacement of calcium and barium ions in ferroelectric (Ba0.9Ca0.1)TiO3 revealed by x-ray fluorescence holography
    In: Applied Physics Letters 120 (2022)
    ISSN: 0003-6951
    DOI: 10.1063/5.0076325
  • Yamamoto Y., Kimura K., Gadelmawla A., Kawamura K., Sugimoto H., Liu D., Li Q., Yan Q., Khansur NH., Happo N., Kakimoto KI., Webber K., Hayashi K.:
    Local Structural Investigation of (Ba,Ca)(Zr,Ti)O3 and Ca(Zr,Ti)O3 by X-Ray Fluorescence Holography
    In: physica status solidi (b) (2022)
    ISSN: 0370-1972
    DOI: 10.1002/pssb.202100609

2021

  • Gadelmawla A., Rieß K., Birkenstock J., Hinterstein M., Webber K., Khansur NH.:
    Effect of varying Bi content on the temperature-dependent mechanical, dielectric, and structural properties of nominal Na1/2Bi1/2TiO3
    In: Journal of Applied Physics 130 (2021), Art.Nr.: 185106
    ISSN: 0021-8979
    DOI: 10.1063/5.0070594
  • Khansur NH., Eckstein U., Bergler M., Martin A., Wang K., Li JF., Cicconi MR., Hatano K., Kakimoto KI., de Ligny D., Webber K.:
    In situ combined stress- and temperature-dependent Raman spectroscopy of Li-doped (Na,K)NbO3
    In: Journal of the American Ceramic Society (2021)
    ISSN: 0002-7820
    DOI: 10.1111/jace.18269
  • Nishiyama H., Martin A., Hatano K., Kishimoto S., Sasaki N., Webber K., Kakimoto KI.:
    Alkali volatilization of (Li,Na,K)NbO3-based piezoceramics and large-field electrical and mechanical properties
    In: Journal of the Ceramic Society of Japan 129 (2021), S. 127-134
    ISSN: 1882-0743
    DOI: 10.2109/jcersj2.20201

2020

  • Khansur NH., Biggemann J., Stumpf M., Rieß K., Fey T., Webber K.:
    Temperature- and Stress-Dependent Electromechanical Response of Porous Pb(Zr,Ti)O3
    In: Advanced Engineering Materials (2020)
    ISSN: 1438-1656
    DOI: 10.1002/adem.202000389
  • Khansur NH., Martin A., Rieß K., Nishiyama H., Hatano K., Wang K., Li JF., Kakimoto KI., Webber K.:
    Stress-modulated optimization of polymorphic phase transition in Li-doped (K,Na)NbO3
    In: Applied Physics Letters 117 (2020), Art.Nr.: 032901
    ISSN: 0003-6951
    DOI: 10.1063/5.0016072
  • Lorenz MM., Martin A., Webber K., Travitzky N.:
    Electromechanical Properties of Robocasted Barium Titanate Ceramics
    In: Advanced Engineering Materials (2020)
    ISSN: 1438-1656
    DOI: 10.1002/adem.202000325
  • Nishiyama H., Martin A., Hatano K., Kishimoto S., Sasaki N., Khansur NH., Webber K., Kakimoto KI.:
    Electric-field-induced strain of (Li,Na,K)NbO3-based multilayered piezoceramics under electromechanical loading
    In: Journal of Applied Physics 128 (2020)
    ISSN: 0021-8979
    DOI: 10.1063/5.0029615
Energy Conversion Systems: From Materials to Devices (IGK 2495)
Institute of Glass and Ceramics (FAU)

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