AI Article Synopsis
- A new device design called the piezo-induced triboelectric (PIT) device enhances power output through the piezoelectric effect, significantly improving performance compared to traditional triboelectric devices.
- The PIT device, incorporating ZnO nanowires in a PDMS layer, achieves an impressive output power density of 50 μW/cm, utilizing an external force of 8.5 N, which is up to 100 times greater than conventional designs.
- This technology can power 100 LEDs compared to fewer than 20 from standard devices, indicating its potential for self-powered electronics in applications like wearables and mobile devices.
Article Abstract
Here, we demonstrate a novel device structure design to enhance the electrical conversion output of a triboelectric device through the piezoelectric effect called as the piezo-induced triboelectric (PIT) device. By utilizing the piezopotential of ZnO nanowires embedded into the polydimethylsiloxane (PDMS) layer attached on the top electrode of the conventional triboelectric device (Au/PDMS-Al), the PIT device exhibits an output power density of 50 μW/cm, which is larger than that of the conventional triboelectric device by up to 100 folds under the external applied force of 8.5 N. We found that the effect of the external piezopotential on the top Au electrode of the triboelectric device not only enhances the electron transfer from the Al electrode to PDMS but also boosts the internal built-in potential of the triboelectric device through an external electric field of the piezoelectric layer. Furthermore, 100 light-emitting diodes (LEDs) could be lighted up via the PIT device, whereas the conventional device could illuminate less than 20 LED bulbs. Thus, our results highlight that the enhancement of the triboelectric output can be achieved by using a PIT device structure, which enables us to develop hybrid nanogenerators for various self-power electronics such as wearable and mobile devices.
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| http://dx.doi.org/10.1021/acsami.7b17314 | DOI Listing |
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