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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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Bespalova, Kristina
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Topics
Publications (8/8 displayed)
- 2024Metalorganic Chemical Vapor Deposition of AlN on High Degree Roughness Vertical Surfaces for MEMS Fabricationcitations
- 2023In-Plane AlN-based Actuator: Toward a New Generation of Piezoelectric MEMScitations
- 2022Unlocking the Potential of Piezoelectric Films Grown on Vertical Surfaces for Inertial MEMScitations
- 2021Characterization of AlScN-based multilayer systems for piezoelectric micromachined ultrasound transducer (pMUT) fabricationcitations
- 2021Characterization of AlScN-based multilayer systems for piezoelectric micromachined ultrasound transducer (pMUT) fabricationcitations
- 2021Characterization of AlScN-Based Multilayer Systems for Piezoelectric Micromachined Ultrasound Transducer (pMUT) Fabricationcitations
- 2021Atomic layer deposition of AlN using atomic layer annealing - Towards high-quality AlN on vertical sidewallscitations
- 2021Effect of crystal structure on the Young's modulus of GaP nanowirescitations
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article
Effect of crystal structure on the Young's modulus of GaP nanowires
Abstract
Young's modulus of tapered mixed composition (zinc-blende with a high density of twins and wurtzite with a high density of stacking faults) gallium phosphide (GaP) nanowires (NWs) was investigated by atomic force microscopy. Experimental measurements were performed by obtaining bending profiles of as-grown inclined GaP NWs deformed by applying a constant force to a series of NW surface locations at various distances from the NW/substrate interface. Numerical modeling of experimental data on bending profiles was done by applying Euler-Bernoulli beam theory. Measurements of the nano-local stiffness at different distances from the NW/substrate interface revealed NWs with a non-ideal mechanical fixation at the NW/substrate interface. Analysis of the NWs with ideally fixed base resulted in experimentally measured Young's modulus of 155 +/- 20 GPa for ZB NWs, and 157 +/- 20 GPa for WZ NWs, respectively, which are in consistence with a theoretically predicted bulk value of 167 GPa. Thus, impacts of the crystal structure (WZ/ZB) and crystal defects on Young's modulus of GaP NWs were found to be negligible. ; Peer reviewed