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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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Huber, Patrick
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (23/23 displayed)
- 2024Synthesis, nanocrystalline morphology, lattice dynamics and nonlinear optics of mesoporous SiO2&LiNbO3 nanocomposite
- 2024Synthesis, nanocrystalline morphology, lattice dynamics and nonlinear optics of mesoporous SiO2&LiNbO3 nanocomposite
- 2024On the applicability of the Maxwell Garnett effective medium model to media with a high density of cylindrical porescitations
- 2024A Mott-Schottky Analysis of Mesoporous Silicon in Aqueous Electrolyte by Electrochemical Impedance Spectroscopy
- 2024Wafer-scale fabrication of mesoporous silicon functionalized with electrically conductive polymerscitations
- 2024Polymeric liquids in mesoporous photonic structures: From precursor film spreading to imbibition dynamics at the nanoscalecitations
- 2024A Mott-Schottky analysis of mesoporous silicon in aqueous electrolyte solution by electrochemical impedance spectroscopycitations
- 2023Wafer-Scale Fabrication of Hierarchically Porous Silicon and Silica Glass by Active Nanoparticle-Assisted Chemical Etching and Pseudomorphic Thermal Oxidationcitations
- 2022On the issue of textured crystallization of Ba(NO$_3$)$_2$ in mesoporous SiO$_2$: Raman spectroscopy and lattice dynamics analysiscitations
- 2022Synthesis of organic–inorganic hybrids based on the conjugated polymer P3HT and mesoporous siliconcitations
- 2022Diffusionlike Drying of a Nanoporous Solid as Revealed by Magnetic Resonance Imagingcitations
- 2022Multiple glassy dynamics of a homologous series of triphenylene-based columnar liquid crystals – A study by broadband dielectric spectroscopy and advanced calorimetrycitations
- 2022Synthesis of organic-inorganic hybrids based on the conjugated polymer P3HT and mesoporous siliconcitations
- 2021Paraelectric KH$_2$PO$_4$ nanocrystals in monolithic mesoporous silica: Structure and lattice dynamicscitations
- 2021Werkzeugeintritt beim Rührreibschweißen ; Friction Stir Welding of Fiber Reinforced Plastics
- 2021Anisotropic confinement of chromophores induces second-order nonlinear optics in a nanoporous photonic metamaterialcitations
- 2021Paraelectric KH2PO4 Nanocrystals in Monolithic Mesoporous Silica: Structure and Lattice Dynamics
- 2021Wafer-Scale Electroactive Nanoporous Silicon: Large and Fully Reversible Electrochemo-Mechanical Actuation in Aqueous Electrolytescitations
- 2020Giant electrochemical actuation in a nanoporous silicon-polypyrrole hybrid materialcitations
- 2017Adsorption-induced deformation of nanoporous materials : a review
- 2015High-resolution dielectric study reveals pore-size-dependent orientational order of a discotic liquid crystal confined in tubular nanoporescitations
- 2014Thermotropic orientational order of discotic liquid crystals in nanochannels: an optical polarimetry study and a Landau-de Gennes analysiscitations
- 2012Anomalous front broadening during spontaneous imbibition in a matrix with elongated pores
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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.