Output performance of piezoelectric nanogenerators with various ZnO dimensional nanostructures
발표자
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초록
내용
Recently, piezoelectric nanogenerators (PNGs), which harvest mechanical energy from daily movements into electrical energy, have been proposed as an effective strategy for powering mobile electronic devices. Zinc oxide (ZnO), which can be easily synthesized into various nanostructures, has been studied as a piezoelectric material. However, it is necessary to investigate the comparison of piezoelectric performance according to the various dimensional nanostructures of ZnO. In this study, the output voltages of PNGs with ZnO nanowire, nanoplate, and nanoflower prepared by hydrothermal synthesis or starch-assisted ultrasonic method were compared. The output voltage of the ZnO nanoflower-based PNG was the highest because of the large surface area of the nanoflower due to its 3D structure. Therefore, the output performance of PNGs can be expected to be improved by controlling the ZnO dimensional nanostructure.