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Pubmed for Handhelds

PUBMED FOR HANDHELDS

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  • Title: All-Printed Human Activity Monitoring and Energy Harvesting Device for Internet of Thing Applications.
    Author: Ali S, Khan S, Bermak A.
    Journal: Sensors (Basel); 2019 Mar 08; 19(5):. PubMed ID: 30857249.
    Abstract:
    A self-powered device for human activity monitoring and energy harvesting for Internet of Things (IoT) devices is proposed. The self-powered device utilizes flexible Nano-generators (NGs), flexible diodes and off-the-shelf capacitors. During footsteps the NGs generate an AC voltage then it is converted into DC using rectifiers and the DC power is stored in a capacitor for powering the IoT devices. Polydimethylsiloxane (PDMS) and zinc stannate (ZnSnO₃) composite is utilized for the NG active layer, indium tin oxide (ITO) and aluminum (Al) are used as the bottom and top electrodes, respectively. Four diodes are fabricated on the bottom electrode of the NG and connected in bridge rectifier configuration. A generated voltage of 18 Vpeak was achieved with a human footstep. The self-powered smart device also showed excellent robustness and stable energy scavenger from human footsteps. As an application we demonstrate human activity detection and energy harvesting for IoT devices.
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