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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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Žukauskaitė, Agnė
Fraunhofer Institute for Organic Electronics, Electron Beam and Plasma Technology
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (7/7 displayed)
- 2024Volumetric 3D-Printed Piezoelectric Polymer Filmscitations
- 2022Laser Ultrasound Investigations of AlScN(0001) and AlScN(11-20) Thin Films Prepared by Magnetron Sputter Epitaxy on Sapphire Substratescitations
- 2022Static High Voltage Actuation of Piezoelectric AlN and AlScN Based Scanning Micromirrorscitations
- 2021Stability and residual stresses of sputtered wurtzite AlScN thin filmscitations
- 2014Metastable ScAlN and YAlN Thin Films Grown by Reactive Magnetron Sputter Epitaxy
- 2012Microstructure and Dielectric Properties of Piezoelectric Magnetron Sputtered w-ScxAl1-xN thin filmscitations
- 2011Anomalously high thermoelectric power factor in epitaxial ScN thin filmscitations
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article
Volumetric 3D-Printed Piezoelectric Polymer Films
Abstract
<p>A novel additive manufacturing route using a tailored resin containing Poly(vinylidene fluoride) Trifluoroethylene (PVDF-TrFE) to 3D print piezoelectric films is demonstrated. Piezoelectric films are printed within 2 seconds in a single step by simultaneously focusing initiating and inhibiting excitations within the liquid resin to locally confine the photochemical reaction. The printed films are patterned with an array of holes with a diameter of 30 µm and a pitch of 55 µm. The piezoelectric response is homogeneous across the film, indicating that the print pattern does not impact the PVDF-TrFE microstructure. Although the printed films contain only a small volume fraction of PVDF-TrFE (3 wt.%), their piezoelectric response (d<sub>33</sub> = 20.3 pC/N) is comparable to the highest literature values reported for PVDF-TrFE films. The printed PVDF-TrFE films are predominantly β-phase, and no electrical poling, post-processing, piezoelectric or inorganic additives are used in the fabrication. Analysis using piezoresponse force microscopy (PFM) and scanning electron microscopy (SEM) reveals that the enhanced piezoelectric response is due to the preferential formation of oriented PVDF-TrFE phases during printing. These results demonstrate how the dedicated design of photoactive resins in combination with volumetric additive manufacturing can be applied to rapidly fabricate functional 3D structures.</p>