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      Technology evolution from self-powered sensors to AIoT enabled smart homes

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      Nano Energy
      Elsevier BV

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          Flexible triboelectric generator

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            Wearable biosensors for healthcare monitoring

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              Piezoelectric nanogenerators based on zinc oxide nanowire arrays.

              We have converted nanoscale mechanical energy into electrical energy by means of piezoelectric zinc oxide nanowire (NW) arrays. The aligned NWs are deflected with a conductive atomic force microscope tip in contact mode. The coupling of piezoelectric and semiconducting properties in zinc oxide creates a strain field and charge separation across the NW as a result of its bending. The rectifying characteristic of the Schottky barrier formed between the metal tip and the NW leads to electrical current generation. The efficiency of the NW-based piezoelectric power generator is estimated to be 17 to 30%. This approach has the potential of converting mechanical, vibrational, and/or hydraulic energy into electricity for powering nanodevices.
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                Author and article information

                Journal
                Nano Energy
                Nano Energy
                Elsevier BV
                22112855
                January 2021
                January 2021
                : 79
                : 105414
                Article
                10.1016/j.nanoen.2020.105414
                3673c657-72c8-49c8-8d20-abeb8cf5188e
                © 2021

                https://www.elsevier.com/tdm/userlicense/1.0/


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