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Reliable sensors based on graphene textile with negative resistance variation in three dimensions
- Source :
- Nano Research. 14:2810-2818
- Publication Year :
- 2021
- Publisher :
- Springer Science and Business Media LLC, 2021.
-
Abstract
- The weft-knitted reduced graphene oxide (r-GO) textile that is made up of many conductive r-GO coated fibers was successfully prepared dependent on the electrospray deposition technique. Interestingly, the r-GO textile presents negative resistance variation not only in axial direction as the pressure increases but also in transverse direction as the lateral stretch increases which makes it has the advantage to fabricate the reliable sensors based on strain-resistance effect. The transverse-strain and pressure sensors based on the r-GO textiles all show the excellent sensing characteristics such as high sensitivity, reliability, and good durability, etc. The maximum gauge factors (GF) of the transverse-sensor are 27.1 and 153.5 in the x- and y-direction, respectively. And the practical detection range can up to 40% in the x-direction and 35% in the y-direction, respectively. The r-GO textile pressure sensor also shows high sensitivity for a broad pressure range that with a GF up to 716.8 kPa−1 for less than 4.5 kPa region and still has more sensitive pressure sensing characteristics even the pressure goes up to 14 kPa. Based on those good performances of r-GO textile sensors, its potential applications in human body states monitoring have been studied.
- Subjects :
- Materials science
Textile
Negative resistance
Oxide
02 engineering and technology
010402 general chemistry
01 natural sciences
law.invention
chemistry.chemical_compound
law
General Materials Science
Sensitivity (control systems)
Electrical and Electronic Engineering
Composite material
Electrical conductor
Graphene
business.industry
021001 nanoscience & nanotechnology
Condensed Matter Physics
Durability
Pressure sensor
Atomic and Molecular Physics, and Optics
0104 chemical sciences
chemistry
0210 nano-technology
business
Subjects
Details
- ISSN :
- 19980000 and 19980124
- Volume :
- 14
- Database :
- OpenAIRE
- Journal :
- Nano Research
- Accession number :
- edsair.doi...........a6380bef372664702458aaf89cbb15b1