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Dual sensing and actuation of ultrathin conducting polymer transducers

Tan Ngoc Nguyen 1, 2 Cedric Plesse Frederic Vidal Sébastien Grondel 1, 2 Eric Cattan 1, 2 John D.W. Madden 
2 MAMINA - IEMN - Matériaux et Acoustiques pour MIcro et NAno systèmes intégrés - IEMN
IEMN-DOAE - Institut d’Électronique, de Microélectronique et de Nanotechnologie - Département Opto-Acousto-Électronique - UMR 8520
Abstract : Conducting polymers are active materials that exhibit an interesting bidirectional electromechanical coupling, where an input voltage results in the displacement of the film and a voltage is produced when a displacement is applied to the film. Mechanical deformation of the transducer by external mechanical loads causes movement of ions, and the generation of voltages. In this work, a dual sensing and actuation model for conducting polymer is described. The model comprises an RC lumped circuit, representing the electrochemical model, a mechanical model described by a dynamic Euler – Bernoulli beam theory, and an empirical strain-to-charge ratio. All three submodels are presented in a self-consistent Bond Graph formalism. The predictions of this model are then demonstrated by comparing with the experimental sensing and actuation results of a 17 µm thin poly(3,4-ethylenedioxythiophene) – based trilayer transducer, showing that the complete electromechanical model elucidates an effective approach to describe both sensing and actuation.
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Submitted on : Monday, February 21, 2022 - 2:29:31 PM
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Tan Ngoc Nguyen, Cedric Plesse, Frederic Vidal, Sébastien Grondel, Eric Cattan, et al.. Dual sensing and actuation of ultrathin conducting polymer transducers. Electroactive Polymer Actuators and Devices (EAPAD) XXI, Mar 2019, Denver, CO, United States. pp.65, ⟨10.1117/12.2517969⟩. ⟨hal-03582815⟩



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