| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Krekeler, Tobias
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (19/19 displayed)
- 2023Effect of Gd solutes on the micromechanical response of twinning and detwinning in Mgcitations
- 2023Wafer-Scale Fabrication of Hierarchically Porous Silicon and Silica Glass by Active Nanoparticle-Assisted Chemical Etching and Pseudomorphic Thermal Oxidationcitations
- 2023Magnetron Sputter Grown AlN Nanostructures with Giant Piezoelectric Response toward Energy Generationcitations
- 2023Magnetron Sputter Deposition of Nanostructured AlN Thin Filmscitations
- 2022Strengthening Engineered Nanocrystal Three-Dimensional Superlattices via Ligand Conformation and Reactivitycitations
- 2021Defects and plasticity in ultrastrong supercrystalline nanocompositescitations
- 2021Simultaneous enhancement of actuation strain and mechanical strength of nanoporous Ni–Mn actuatorscitations
- 2020Giant electrochemical actuation in a nanoporous silicon-polypyrrole hybrid materialcitations
- 2019Hierarchical supercrystalline nanocomposites through the self-assembly of organically-modified ceramic nanoparticlescitations
- 2019Hierarchical supercrystalline nanocomposites through the self-assembly of organically-modified ceramic nanoparticles
- 2019Hierarchical supercrystalline nanocomposites through the self-assembly of organically-modified ceramic nanoparticlescitations
- 2019Alumina-doped zirconia submicro-particles : synthesis, thermal stability, and microstructural characterizationcitations
- 2019Synthesis and thermal stability of ZrO2@SiO2 core-shell submicron particlescitations
- 2019Alumina-Doped Zirconia Submicro-Particles: Synthesis, Thermal Stability, and Microstructural Characterizationcitations
- 2019Modulating the Mechanical Properties of Supercrystalline Nanocomposite Materials via Solvent–Ligand Interactionscitations
- 2018Photonic materials for high-temperature applications: synthesis and characterization by X-ray ptychographic tomography
- 2017Semiordered hierarchical metallic network for fast and large charge-induced straincitations
- 2017Exceptionally strong, stiff and hard hybrid material based on an elastomer and isotropically shaped ceramic nanoparticlescitations
- 2017Highly porous α-Al 2 O 3 ceramics obtained by sintering atomic layer deposited inverse opals
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document
Giant electrochemical actuation in a nanoporous silicon-polypyrrole hybrid material
Abstract
The absence of piezoelectricity in silicon makes direct electromechanical applications of this mainstream semiconductorimpossible. Integrated electrical control of the silicon mechanics, however, would open up new perspectivesfor on-chip actuorics. Here, we combine wafer-scale nanoporosity in single-crystalline silicon withpolymerization of an artificial muscle material inside pore space to synthesize a composite that shows macroscopicelectrostrain in aqueous electrolyte. The voltage-strain coupling is three orders of magnitude larger than the best-performingceramics in terms of piezoelectric actuation. We trace this huge electroactuation to the concerted actionof 100 billions of nanopores per square centimeter cross section and to potential-dependent pressures of up to150 atmospheres at the single-pore scale. The exceptionally small operation voltages (0.4 to 0.9 volts), along withthe sustainable and biocompatible base materials, make this hybrid promising for bioactuator applications.