Work

High dielectric permittivity sulfonyl-modified polysiloxanes as a dielectric for soft actuators

Year: 2025

Type: article

Abstract: only, despite using a dielectric film with a thickness of 145 μm. Although our stack exhibits a lower dielectric breakdown field than stacks using acrylates or polydimethylsiloxane elastomers, it operates effectively at much lower electric fields. Since actuation scales with the inverse square of the dielectric thickness, reducing the thickness greatly enhances not only the actuation but also the breakdown field, supporting applications where low-voltage operation is critical.

Source: Journal of Materials Chemistry C

DOI: 10.1039/d5tc01539a

Authors: Cansu Zeytun Karaman, Thulasinath Raman Venkatesan, Johannes von Szczepanski, Frank A. Nüesch, Dorina M. Opris

Institutions: École Polytechnique Fédérale de Lausanne, Swiss Federal Laboratories for Materials Science and Technology, ETH Zurich

Language: English

Topic: Dielectric materials and actuators

Subfield: Biomedical Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: hybrid

Funders: European Commission, KU Leuven, H2020 European Research Council, H2020 Marie Skłodowska-Curie Actions

Awards: G1989892673, G434337789, Synthesis of novel stimuli responsive dielectric polymers and their use in powerful transducers, Soft, Self-responsive, Smart MAterials for RoboTs, Soft, Self-responsive, Smart MAterials for RoboTs