| 초록 |
The ultimate goal in research of piezoelectric energy harvesting is to realize a powering device for practical applications such as wireless electronics. A key challenge has been insufficient power and voltage generation for practical applications, which necessitates creative and disruptive materials and structure design at various scales. In this study, we focus on amplification of input mechanical energy into the energy harvesting system through metamaterials. Metamaterials, artificially engineered materials, exhibit unique properties including bandgap and negative refractive index and thus enable us to manipulate mechanical wave propagations. Wave guide and localization toward a desired position can lead to maximization of harvestable input mechanical power. Our objective in this work is to investigate the effect of metamaterials on energy focusing and harvesting. |
