Self-powered communicating wireless sensor with flexible aero-piezoelectric energy harvester

Autor: Benoit Guiffard, Stéphane Ginestar, Raynald Seveno, Julien Le Scornec, Vincent Le Cam

Publikováno v: Renewable Energy
Renewable Energy, 2022, 184, pp.551-563. ⟨10.1016/j.renene.2021.11.113⟩

International audience; This paper presents an ultra-flexible piezoelectric air flow energy harvester capable of powering a wireless sensor. The method to easily adapt the aero-electric generator to the wind is presented. In the wind tunnel, differen

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9d978818bc461f9066af00de31a6a0b4
https://doi.org/10.1016/j.renene.2021.11.113

Enhancing flexoelectricity in PEDOT:PSS polymer films with soft treatments

Autor: Pierre Frère, Benoit Guiffard, Y. Aceta, Maria Saadeh

Publikováno v: Journal of Applied Physics
Journal of Applied Physics, 2021, 130 (1), pp.014103. ⟨10.1063/5.0052302⟩
Journal of Applied Physics, American Institute of Physics, 2021, 130 (1), pp.014103. ⟨10.1063/5.0052302⟩

We report the use of poly(3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS) as a transducing material in the fabrication of mechanical-to-electrical conversion devices based on the flexoelectric-like response of this polymer. Devices are

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2e8cd5f83d206bee63f2c49ee5389c76
https://hal.science/hal-03381827

Ferroelectricity and high tunability in novel strontium and tantalum based layered perovskite materials

Autor: Franck Tessier, Thibault Dufay, Claire Le Paven, Ratiba Benzerga, Florent Marlec, François Cheviré, Laurent Le Gendre, Bachir Messaid, Ala Sharaiha, Benoit Guiffard

Publikováno v: Journal of the European Ceramic Society
Journal of the European Ceramic Society, Elsevier, 2018, 38 (6), pp.2526-2533. ⟨10.1016/j.jeurceramsoc.2018.01.033⟩
Journal of the European Ceramic Society, 2018, 38 (6), pp.2526-2533. ⟨10.1016/j.jeurceramsoc.2018.01.033⟩

International audience; The present study reveals the ferroelectric nature of the novel (Sr2Ta2O7)100-x(La2Ti2O7)x layered perovskite materials and highlights a large variation of their permittivity under electric fields associated with very low diel

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::64c884975a78166089a7453a5fb9ad72
https://doi.org/10.1016/j.jeurceramsoc.2018.01.033

Enhancement of the magnetoelectric response of polyurethane polymer / piezoceramic bi-layer materials

Autor: Daniel Guyomar, Rabah Belouadah, Benoit Guiffard, Laurence Seveyrat

Publikováno v: Sensors and Actuators A: Physical
Sensors and Actuators A: Physical, Elsevier, 2019, 299, pp.111582. ⟨10.1016/j.sna.2019.111582⟩
Sensors and Actuators A: Physical, 2019, 299, pp.111582. ⟨10.1016/j.sna.2019.111582⟩

This paper deals with the eddy current-induced magnetoelectric (ME) effect in a bi-layered structure consisting of a piezoelectric ceramic and a thermoplastic polyurethane (PU) film with three different values of Young’s modulus. It is observed a g

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6cb4c8f2dbf25ee7dbc73950b9e478b2
https://hal.archives-ouvertes.fr/hal-02316835

Magnetoelectric experiments and modelling in bi-layer composites consisting of polyurethane loaded with magnetic particles/piezoelectric ceramic

Autor: Daniel Guyomar, Rabah Belouadah, Benoit Guiffard, Abderrahmane Tabakh

Publikováno v: Applied physics. A, Materials science & processing
Applied physics. A, Materials science & processing, 2019, 125 (9), pp.667. ⟨10.1007/s00339-019-2962-5⟩
Applied physics. A, Materials science & processing, Springer Verlag, 2019, 125 (9), pp.667. ⟨10.1007/s00339-019-2962-5⟩

This study examines the effect of the loss-damping $$\eta$$ coefficient and the stress magnetostrictive coefficient $$\delta$$ on the magnetoelectric (ME) phenomenon in bi-layer composites consisting of a polyurethane layer loaded with magnetic $${\t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::54aba51c4d95cfc8f454ce4315a085c6
https://hal.science/hal-02294105