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http://dx.doi.org/10.6109/jkiice.2021.25.5.719

Nanostructured energy harvesting devices and their applications for IoT sensor networks  

Yoon, Chongsei (School of Electrical Engineering, Korea Advanced Institute of Science and Technology)
Jeon, Buil (School of Electrical Engineering, Korea Advanced Institute of Science and Technology)
Yoon, Giwan (School of Electrical Engineering, Korea Advanced Institute of Science and Technology)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.25, no.5, 2021 , pp. 719-730 More about this Journal
Abstract
We have demonstrated a sandwich-type ZnO-based piezoelectric energy harvesting nanogenerator, namely ZCZ-NG device, composed of symmetrically stacked layers of ZnO/carbon tape/ZnO structure. Especially, we have adopted a conductive double-sided adhesive carbon tape in an effort to fabricate a high-quality ZCZ-NG device, leading to its superior output performance in terms of the peak-to-peak output voltage. Effects of the device size, ZnO layer thickness, and bending strain rate on the device performance have been investigated by measuring the output voltage. Moreover, to evaluate the effectiveness of the fabricated ZCZ-NG devices, we have experimentally implemented a sensor network testbed which can utilize the output voltages of ZCZ-NG devices. This sensor network testbed consists of several components such as Arduino-based transmitter and receiver nodes, wirelessly transmitting the sensed information of each node. We hope that this research combining the ZnO-based energy harvesting devices and IoT sensor networks will contribute to the development of more advanced energy harvester-driven IoT sensor networks in the future.
Keywords
Zinc oxide; Piezoelectric device; Energy harvesting; Sandwich-type; Sensor network applications;
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