Highly Sensitive and Multifunctional Tactile Sensor Using Free-standing ZnO/PVDF Thin Film with Graphene Electrodes for Pressure and Temperature Monitoring
Open accessAbstract
We demonstrate an 80-μm-thick film (which is around 15% of the thickness of the human epidermis), which is a highly sensitive hybrid functional gauge sensor and was fabricated from poly(vinylidene fluoride) (PVDF) and ZnO nanostructures with graphene electrodes. Using this film, we were able to simultaneously measure pressure and temperature in real time. The pressure was monitored from the change in the electrical resistance via the piezoresistance of the material and the temperature was inferred based on the recovery time of the signal. Our thin film system enabled us to detect changes in pressure as small as 10 Pa which is pressure detection limit was 10 3-fold lower than the minimum level required for artificial skin and to detect temperatures in the range 20–120°C.
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Simultaneous sensing of temperature and pressure were demonstrated by utilizing piezoresistive and pyroelectric behavior of PVDF/ZnO NR nanocomposites or piezoelectric and pyroelectric properties of PVDF-TrFE/BaTiO3 nanocomposites.
“Simultaneous sensing of temperature and pressure were demonstrated by utilizing piezoresistive and pyroelectric behavior of PVDF/ZnO NR nanocomposites [62] or piezoelectric and pyroelectric properties of PVDF-TrFE/BaTiO 3 nanocomposites.[185]”
From Nanomaterial-Enabled Wearable Sensors for Healthcare (2018) · cites this paper as [62]
Temperature and tactile mapping can be achieved by integrating temperature sensors and tactile sensors into a single pixel.
“Temperature and tactile mapping can be achieved by integrating temperature sensors and tactile sensors into a single pixel.[62,65]”
From Nanomaterial-Enabled Wearable Sensors for Healthcare (2018) · cites this paper as [62]
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- Authors
- Lee, J. S., Shin, K.-Y., Cheong, O. J., Kim, J. H., & Jang, J.
- Affiliations
- Seoul National University (KR)
- Samsung (South Korea) (KR)
- Corresponding author
- Jang, Jyongsik
- Venue
- Scientific Reports
- Published
- 2015-01-20
- Volume
- 5
- Issue
- 1
- Pages
- 7887-7887
- ISSN
- 2045-2322 (ISSN-L)
- PMC
- PMC4298719
- OpenAlex
- W2039519879
- Cited by
- 199
- References
- 44
- Citations by year
- 2026: 9 · 2025: 6 · 2024: 16 · 2023: 19 · 2022: 19 · 2021: 16 · 2020: 26 · 2019: 23 · 2018: 24 · 2017: 20 · 2016: 17 · 2015: 4
- FWCI
- 10.76
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Locations
- Scientific Reports (publishedVersion, cc-by)
- PubMed Central (publishedVersion, cc-by)
- PubMed (publishedVersion)
- Funders
- National Research Foundation
- National Research Foundation of Korea (2011-0017125)
- Topics
- Physical Sciences › Engineering › Biomedical Engineering › Advanced Sensor and Energy Harvesting Materials
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Nanomaterials and Printing Technologies
- Physical Sciences › Materials Science › Materials Chemistry › ZnO doping and properties
- Keywords
- tactile sensors, piezoresistive sensors, ZnO nanostructures, PVDF thin films, graphene electrodes, pressure sensing, temperature sensing, artificial skin, flexible electronics, resistance change
- MeSH terms
- Electrodes, Fluorocarbon Polymers, Graphite, Humans, Polyvinyls, Pressure, Temperature, Zinc Oxide, Biosensing Techniques, Nanostructures
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