| 초록 |
Energy harvesting that can scavenge various kinds of mechanical energy from several different sources have attracted great attention. In first part, we report piezoelectric nanoparticles–polymer composites to overcome the practical limitations of existing PNGs. Benefiting from the unique composites, our composite system shows excellent dispersion of the PZT nanoparticles in the polymer matrices without the use of dispersing agents as well as high performance in voltage and current generation under applied flexural stresses. In second part, we report a new-type of stretchable TENG fabricated by using hierarchically patterned films composed of PU foam and Ag electrode layers. By virtue of the exclusive structural design, the stretchable TENG could be operated at both contact-separation and stretching-releasing modes. Therefore, the proposed energy harvesters provide an insight into energy sources for low-power-consumption wearable devices. |
