Highly Sensitive and Flexible Piezoresistive Pressure Sensors Based on 3D Reduced Graphene Oxide Aerogel

The flexible piezoresistive sensors have versatile applications for healthcare. The fabrication procedures of these sensors are generally costly, complex, and environmentally unfriendly. Herein, we use L-cystine as the green reductant and templating agent to prepare 3D reduced graphene oxide (rGO) a...

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Bibliographic Details
Published in:IEEE electron device letters 2021-04, Vol.42 (4), p.589-592
Main Authors: Li, Qichao, Liu, Yamin, Chen, Di, Miao, Jianmin, Lin, Shujing, Cui, Daxiang
Format: Article
Language:English
Subjects:
3D rGO aerogel
Aerogels
Cystine
e-skin
Flexible piezoresistive sensor
Graphene
Human motion
human motions
Linearity
low-cost fabrication
Piezoresistance
Polyvinyl chloride
Pressure sensors
Reducing agents
Sensors
Substrates
Temperature sensors
Three-dimensional displays
Wrist
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Summary:The flexible piezoresistive sensors have versatile applications for healthcare. The fabrication procedures of these sensors are generally costly, complex, and environmentally unfriendly. Herein, we use L-cystine as the green reductant and templating agent to prepare 3D reduced graphene oxide (rGO) aerogel, and polyvinyl chloride tape as the substrates to encapsulate the aerogel for making the piezoresistive sensor. The sensor shows good linearity of resistance to logarithmic pressure value in a wide range of 170.4 kPa to 2.4 MPa, and it is capable to monitor the wrist pulse and human motion. Sensors fabricated by this facile and economical method have great potential application in electronic skin.
ISSN:0741-3106
1558-0563
DOI:10.1109/LED.2021.3063166