A flexible anisotropic self-powered piezoelectric direction sensor based on double sided ZnO nanowires configuration
Open accessAbstract
We have successfully synthesized highly dense and well aligned zinc oxide nanowires (NWs) on the two sides of a PEDOT: PSS substrate by a single step low temperature hydrothermal method. The grown sample was used to fabricate a double sided piezoelectric nanogenerator (NG). The maximum harvested output power density from the fabricated double sided NG configuration was about 4.44 mW cm(-2). The results obtained from the present double sided NG were approximately double the output from a single side. In addition to that, the voltage polarity of the harvested voltage from the two sides of the NG has been investigated. The results showed that upon bending, an anisotropic voltage polarity is generated on the two sides. Indicating that, this double sided NG can be used as a self-powered voltage polarity based direction sensor. The results of the present flexible double sided NG is very promising for harvesting energy from irregular mechanical energy sources in the surrounding environment. In addition, the fabricated configuration showed stability for sensing and can be used in surveillance and security applications.
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Various piezoelectric materials such as ZnO nanostructures, PVDF-TrFE, and PLA have been used to develop wearable strain sensors.
“Various piezoelectric materials such as ZnO nanostructures, [40,132,133] poly(vinylidenefluoride-co-trifluoroethylene) (PVDF-TrFE) [134] and polylactic acid (PLA) [22] have been used to develop wearable strain sensors.”
From Nanomaterial-Enabled Wearable Sensors for Healthcare (2018) · cites this paper as [133]
Power can be harvested from various sources including temperature difference and mechanical sources such as body movements and vibrations.
“The power can be harvested from various sources including temperature difference and mechanical sources such as body movements and vibrations.[66,67,75,131,133,162,200,201]”
From Nanomaterial-Enabled Wearable Sensors for Healthcare (2018) · cites this paper as [133]
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Significance of Nanomaterials in Wearables: A Review on Wearable Actuators and Sensors
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- Authors
- Nour, E. S., Chey, C. O., Willander, M., & Nur, O.
- Affiliations
- Linköping University (SE)
- Venue
- Nanotechnology
- Publisher
- IOP Publishing
- Published
- 2015-02-13
- Volume
- 26
- Issue
- 9
- Pages
- 095502
- ISSN
- 0957-4484 (ISSN-L)
- 1361-6528
- OpenAlex
- W2029422907
- Cited by
- 32
- References
- 30
- Citations by year
- 2026: 1 · 2025: 3 · 2024: 1 · 2023: 1 · 2022: 2 · 2021: 2 · 2020: 4 · 2019: 2 · 2018: 6 · 2017: 4 · 2016: 5 · 2015: 1
- FWCI
- 2.65
- Type
- journal article
- Language
- en
- Open access
- green
- urn.kb.se
- Licence
- Locations
- Nanotechnology (publishedVersion)
- PubMed (publishedVersion)
- KTH Publication Database DiVA (KTH Royal Institute of Technology) (submittedVersion, other-oa)
- Topics
- Physical Sciences › Engineering › Biomedical Engineering › Advanced Sensor and Energy Harvesting Materials
- Physical Sciences › Engineering › Mechanical Engineering › Innovative Energy Harvesting Technologies
- Physical Sciences › Engineering › Biomedical Engineering › Nanowire Synthesis and Applications
- Keywords
- ZnO nanowires, piezoelectric nanogenerators, flexible piezoelectric devices, hydrothermal synthesis, mechanical energy harvesting, vibration energy harvesting
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