Cited by 464Advanced Sensor and Energy Harvesting MaterialsTactile and Sensory InteractionsAdhesion, Friction, and Surface Interactions

Self-Powered, Ultrasensitive, Flexible Tactile Sensors Based on Contact Electrification

Open access
Zhu, Guang, Yang, Wei Qing, Zhang, Tiejun, Jing, Qingshen, Chen, Jun, Zhou, Yu Sheng, Bai, Peng, Wang, Zhong Lin·2014·Nano Letters

Abstract

Tactile/touch sensing is essential in developing human-machine interfacing and electronic skins for areas such as automation, security, and medical care. Here, we report a self-powered triboelectric sensor based on flexible thin-film materials. It relies on contact electrification to generate a voltage signal in response to a physical contact without using an external power supply. Enabled by the unique sensing mechanism and surface modification by polymer-nanowires, the triboelectric sensor shows an exceptional pressure sensitivity of 44 mV/Pa (0.09% Pa(-1)) and a maximum touch sensitivity of 1.1 V/Pa (2.3% Pa(-1)) in the extremely low-pressure region (<0.15 KPa). Through integration of the sensor with a signal-processing circuit, a complete tactile sensing system is further developed. Diverse applications of the system are demonstrated, explicitly indicating a variety of immediate uses in human-electronics interface, automatic control, surveillance, remote operation, and security systems.

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Registry

Crossref · 10.1021/nl5005652

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Authors
Zhu, G., Yang, W. Q., Zhang, T., Jing, Q., Chen, J., Zhou, Y. S., Bai, P., & Wang, Z. L.
Affiliations
  • Georgia Institute of Technology (US)
  • School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
Corresponding author
Wang, Zhong Lin
Venue
Nano Letters
Published
2014-05-19
Volume
14
Issue
6
Pages
3208-3213
ISSN
  • 1530-6984 (ISSN-L)
  • 1530-6992
OpenAlex
W4230148542
Cited by
464
References
30
Citations by year
2026: 16 · 2025: 21 · 2024: 25 · 2023: 25 · 2022: 49 · 2021: 47 · 2020: 49 · 2019: 48 · 2018: 58 · 2017: 55 · 2016: 35 · 2015: 31 · 2014: 5
FWCI
21.74
Type
journal article
Language
en
Open access
Locations
  • Nano Letters (publishedVersion)
  • PubMed (publishedVersion)
  • OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) (submittedVersion)
  • SMARTech Repository (Georgia Institute of Technology) (submittedVersion)
Topics
  • Physical Sciences › Engineering › Biomedical Engineering › Advanced Sensor and Energy Harvesting Materials
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Tactile and Sensory Interactions
  • Physical Sciences › Engineering › Mechanics of Materials › Adhesion, Friction, and Surface Interactions
Keywords
triboelectric sensors, self-powered sensing, tactile sensing, triboelectric charging, polymer nanowires, pressure sensitivity, tactile sensitivity, electronic skin, human-machine interaction, signal processing circuit
MeSH terms
Humans, Pressure, User-Computer Interface, Nanowires

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