Skip to main content

Lund University Publications

LUND UNIVERSITY LIBRARIES

Oxygen-defective electrostrictors for soft electromechanics

Tinti, Victor Buratto ; Han, Jin Kyu ; Frederiksen, Valdemar ; Chen, Huaiyu LU ; Wallentin, Jesper LU ; Kantor, Innokenty LU ; Lyksborg-Andersen, Anton ; Hansen, Thomas Willum ; Bae, Garam and Song, Wooseok , et al. (2024) In Science Advances 10(35).
Abstract

Electromechanical metal oxides, such as piezoceramics, are often incompatible with soft polymers due to their crystallinity requirements, leading to high processing temperatures. This study explores the potential of ceria-based thin films as electromechanical actuators for flexible electronics. Oxygen-deficient fluorites, like cerium oxide, are centrosymmetric nonpiezoelectric crystalline metal oxides that demonstrate giant electrostriction. These films, deposited at low temperatures, integrate seamlessly with various soft substrates like polyimide and PET. Ceria thin films exhibit remarkable electrostriction (M33 > 10−16 m2 V−2) and inverse pseudo-piezo coefficients (e33 >... (More)

Electromechanical metal oxides, such as piezoceramics, are often incompatible with soft polymers due to their crystallinity requirements, leading to high processing temperatures. This study explores the potential of ceria-based thin films as electromechanical actuators for flexible electronics. Oxygen-deficient fluorites, like cerium oxide, are centrosymmetric nonpiezoelectric crystalline metal oxides that demonstrate giant electrostriction. These films, deposited at low temperatures, integrate seamlessly with various soft substrates like polyimide and PET. Ceria thin films exhibit remarkable electrostriction (M33 > 10−16 m2 V−2) and inverse pseudo-piezo coefficients (e33 > 500 pmV−1), enabling large displacements in soft electromechanical systems. Our study explores resonant and off-resonant configurations in the low-frequency regime (<1 kHz), demonstrating versatility for three-dimensional and transparent electronics. This work advances the understanding of oxygen-defective metal oxide electromechanical properties and paves the way for developing versatile and efficient electromechanical systems for applications in biomedical devices, optical devices, and beyond.

(Less)
Please use this url to cite or link to this publication:
author
; ; ; ; ; ; ; ; and , et al. (More)
; ; ; ; ; ; ; ; ; ; ; ; and (Less)
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Science Advances
volume
10
issue
35
article number
eadq3444
publisher
American Association for the Advancement of Science (AAAS)
external identifiers
  • scopus:85203077655
  • pmid:39213346
ISSN
2375-2548
DOI
10.1126/sciadv.adq3444
language
English
LU publication?
yes
additional info
Publisher Copyright: Copyright © 2024 The Authors, some rights reserved.
id
ad470fdf-3ca9-4879-9f53-dc6516dd54c5
date added to LUP
2024-09-16 08:34:08
date last changed
2024-09-17 03:00:06
@article{ad470fdf-3ca9-4879-9f53-dc6516dd54c5,
  abstract     = {{<p>Electromechanical metal oxides, such as piezoceramics, are often incompatible with soft polymers due to their crystallinity requirements, leading to high processing temperatures. This study explores the potential of ceria-based thin films as electromechanical actuators for flexible electronics. Oxygen-deficient fluorites, like cerium oxide, are centrosymmetric nonpiezoelectric crystalline metal oxides that demonstrate giant electrostriction. These films, deposited at low temperatures, integrate seamlessly with various soft substrates like polyimide and PET. Ceria thin films exhibit remarkable electrostriction (M<sub>33</sub> &gt; 10<sup>−16</sup> m<sup>2</sup> V<sup>−2</sup>) and inverse pseudo-piezo coefficients (e<sub>33</sub> &gt; 500 pmV<sup>−1</sup>), enabling large displacements in soft electromechanical systems. Our study explores resonant and off-resonant configurations in the low-frequency regime (&lt;1 kHz), demonstrating versatility for three-dimensional and transparent electronics. This work advances the understanding of oxygen-defective metal oxide electromechanical properties and paves the way for developing versatile and efficient electromechanical systems for applications in biomedical devices, optical devices, and beyond.</p>}},
  author       = {{Tinti, Victor Buratto and Han, Jin Kyu and Frederiksen, Valdemar and Chen, Huaiyu and Wallentin, Jesper and Kantor, Innokenty and Lyksborg-Andersen, Anton and Hansen, Thomas Willum and Bae, Garam and Song, Wooseok and Stamate, Eugen and de Florio, Daniel Zanetti and Bruus, Henrik and Esposito, Vincenzo}},
  issn         = {{2375-2548}},
  language     = {{eng}},
  month        = {{08}},
  number       = {{35}},
  publisher    = {{American Association for the Advancement of Science (AAAS)}},
  series       = {{Science Advances}},
  title        = {{Oxygen-defective electrostrictors for soft electromechanics}},
  url          = {{http://dx.doi.org/10.1126/sciadv.adq3444}},
  doi          = {{10.1126/sciadv.adq3444}},
  volume       = {{10}},
  year         = {{2024}},
}