Cited by 2,042Advanced Sensor and Energy Harvesting MaterialsOrganic Electronics and PhotovoltaicsConducting polymers and applications

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Flexible polymer transistors with high pressure sensitivity for application in electronic skin and health monitoring

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Schwartz, Gregor, Tee, Benjamin C.-K., Mei, Jianguo, Appleton, Anthony L., Kim, Do Hwan, Wang, Huiliang, Bao, Zhenan·2013·Nature Communications

DOI 10.1038/ncomms2832

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Abstract

Flexible pressure sensors are essential parts of an electronic skin to allow future biomedical prostheses and robots to naturally interact with humans and the environment. Mobile biomonitoring in long-term medical diagnostics is another attractive application for these sensors. Here we report the fabrication of flexible pressure-sensitive organic thin film transistors with a maximum sensitivity of 8.4 kPa(-1), a fast response time of <10 ms, high stability over >15,000 cycles and a low power consumption of <1 mW. The combination of a microstructured polydimethylsiloxane dielectric and the high-mobility semiconducting polyisoindigobithiophene-siloxane in a monolithic transistor design enabled us to operate the devices in the subthreshold regime, where the capacitance change upon compression of the dielectric is strongly amplified. We demonstrate that our sensors can be used for non-invasive, high fidelity, continuous radial artery pulse wave monitoring, which may lead to the use of flexible pressure sensors in mobile health monitoring and remote diagnostics in cardiovascular medicine.

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Authors: Schwartz, G., Tee, B. C.-K., Mei, J., Appleton, A. L., Kim, D. H., Wang, H., & Bao, Z.
Affiliations: Stanford University (US)
Soongsil University (KR)
Corresponding author: Bao, Zhenan
ORCID: Tee, Benjamin C.-K.
Mei, Jianguo
Kim, Do Hwan
Wang, Huiliang
Bao, Zhenan
Venue: Nature Communications
Publisher: Springer Science and Business Media LLC
Published: 2013-05-14
Volume: 4
Issue: 1
Pages: 1859-1859
ISSN: 2041-1723 (ISSN-L)
DOI: 10.1038/ncomms2832
OpenAlex: W2069137854
Semantic Scholar: abfbaf816234530c2f47e463140b1233db71ecb1
Cited by: 2,042
References: 48
Citations by year: 2026: 52 · 2025: 114 · 2024: 118 · 2023: 139 · 2022: 168 · 2021: 207 · 2020: 200 · 2019: 258 · 2018: 224 · 2017: 200 · 2016: 149 · 2015: 118 · 2014: 79 · 2013: 15
FWCI: 66.44
Type: journal article
Language: en
Open access: bronze
doi.org
Licence: www.springernature.com/gp/researchers/text-and-data-mining (tdm)
www.springernature.com/gp/researchers/text-and-data-mining (vor)
Locations: Nature Communications (publishedVersion)
PubMed (publishedVersion)
RePEc: Research Papers in Economics (submittedVersion)
Funders: National Science Foundation (1101901)
Camille and Henry Dreyfus Foundation
Deutsche Forschungsgemeinschaft
Division of Electrical, Communications and Cyber Systems
Topics: Physical Sciences › Engineering › Biomedical Engineering › Advanced Sensor and Energy Harvesting Materials
Physical Sciences › Engineering › Electrical and Electronic Engineering › Organic Electronics and Photovoltaics
Physical Sciences › Materials Science › Polymers and Plastics › Conducting polymers and applications
Keywords: flexible pressure sensors, organic thin-film transistors, electronic skin, subthreshold operation, health monitoring, low power consumption, cycling stability
MeSH terms: Adult, Electronics, Medical, Equipment and Supplies, Equipment Design, Health, Humans, Microscopy, Electron, Scanning, Monitoring, Physiologic, Polymers, Pressure, Pulse, Time Factors, Transistors, Electronic, Radial Artery, Pliability

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Flexible polymer transistors with high pressure sensitivity for application in electronic skin and health monitoring

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