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- W4207017752 abstract "Summary form only given, as follows. The complete presentation was not made available for publication as part of the conference proceedings. Flexoelectricity is the generation of electric polarization under mechanical strain gradient or mechanical deformation subjected to an electric gradient (converse-flexo). Flexoelectricity is a more general phenomenon than the linear change in polarization due to stress, the piezoelectric effect. In contrast to piezoelectricity, flexoelectricity exists in wider range of centrosymmetric materials especially nontoxic material useful for biomedical application. Flexoelectricity grows dominantly in energy density when scale reduces to submicro or nano, meaning the promise of enabling self-powered nano device such as body implant and small-scale wireless sensor. In Hannover, multiscale characterization of flexoelectric materials and design of flexoeletric structures based are being carried out including topological optimization for single/multi-phase materials, 2D flexoelectric materials characterization, and atomistic to continuum dynamic flexoelectric modelling as shown in Fig. 1. Phononic metamaterials for enhancing the flexoelectricity is being utilized and intergrated in the design to outperform the current design of nano energy harvesters. Interesting phenomenon of utilizing topological insulators and metaplates of phononic structures will be shown that can enhance the performance of nano energy harvester." @default.
- W4207017752 created "2022-01-26" @default.
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- W4207017752 date "2021-12-12" @default.
- W4207017752 modified "2023-09-23" @default.
- W4207017752 title "Multiscale modelling and optimization of flexoelectric nano structures" @default.
- W4207017752 doi "https://doi.org/10.1109/nmdc50713.2021.9677545" @default.
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