High Sensitivity Flexible Electronic Skin Based on Graphene Film
The School of Aerospace Science and Technology, Xidian University, Xi’an 710071, China
Science and Technology on Space Physics Laboratory, Beijing 100076, China
Beijing Key Laboratory of Environmental Science and Engineering, School of Chemical Engineering and the Environment, Beijing Institute of Technology, Beijing 100081, China
Author to whom correspondence should be addressed.
Received: 26 November 2018 / Revised: 16 January 2019 / Accepted: 29 January 2019 / Published: 15 February 2019
PDF [10221 KB, uploaded 15 February 2019]
Electronic skin with high sensitivity, rapid response, and long-term stability has great value in robotics, biomedicine, and in other fields. However, electronic skin still has challenges in terms of sensitivity and response time. In order to solve this problem, flexible electronic skin with high sensitivity and the fast response was proposed, based on piezoresistive graphene films. The electronic skin was a pressure sensor array, composed of a
tactile sensing unit. Each sensing unit contained three layers: The underlying substrate (polyimide substrate), the middle layer (graphene/polyethylene terephthalate film), and the upper substrate bump (polydimethylsiloxane). The results of the measurement and analysis experiments, designed in this paper, indicated that the flexible electronic skin achieved a positive resistance characteristic in the range of 0 kPa–600 kPa, a sensitivity of
/kPa in the range of 0 kPa–4 kPa, a loading response time of 10 ms, and a spatial resolution of 5 mm. In addition, the electronic skin realized shape detection on a regular-shaped object, based on the change in the resistance value of each unit. The high sensitivity flexible electronic skin designed in this paper has important application prospects in medical diagnosis, artificial intelligence, and other fields.
This is an open access article distributed under the Creative Commons Attribution License
which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
Share & Cite This Article
MDPI and ACS Style
Lü, X.; Yang, J.; Qi, L.; Bao, W.; Zhao, L.; Chen, R. High Sensitivity Flexible Electronic Skin Based on Graphene Film. Sensors 2019, 19, 794.
Lü X, Yang J, Qi L, Bao W, Zhao L, Chen R. High Sensitivity Flexible Electronic Skin Based on Graphene Film. Sensors. 2019; 19(4):794.
Lü, Xiaozhou; Yang, Jiayi; Qi, Liang; Bao, Weimin; Zhao, Liang; Chen, Renjie. 2019. "High Sensitivity Flexible Electronic Skin Based on Graphene Film." Sensors 19, no. 4: 794.
Show more citation formats
Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.
[Return to top]
For more information on the journal statistics, click here
Multiple requests from the same IP address are counted as one view.