Graphene woven fabric-polydimethylsiloxane piezoresistive films for smart multi-stimuli responses

The outstanding properties of graphene, including its electromechanical property, could be engineered for wearable electronic sensor platforms. The tubular graphene weaved into a mesh or graphene woven fabrics (GWF) has been reported as one of the most sensitive materials for deformation detection,...

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Published in:Colloids and surfaces, B, Biointerfaces B, Biointerfaces, 2023-01, Vol.221, p.112940-112940, Article 112940
Main Authors: Tung, Tran T., Tran, Manh T., Pereira, Ana L.C., Cordeiro, Cristiano M.B., Nguyen, Duc D., Tai, Nyan-Hwa, Tran, Van V., Hsu, Chia-Chen, Joshi, Prerna, Yoshimura, Masamichi, Feller, Jean F., Castro, Mickael, Hassan, Kamul, Nine, Md J., Stanley, Nathan, Losic, Dusan
Format: Article
Language:English
Subjects:
Graphene mesh
Graphene multiple sensor
Graphene sensor
Graphene woven fabric
Piezo-resistive sensor
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Summary:The outstanding properties of graphene, including its electromechanical property, could be engineered for wearable electronic sensor platforms. The tubular graphene weaved into a mesh or graphene woven fabrics (GWF) has been reported as one of the most sensitive materials for deformation detection, as well as a promising temperature sensor. Herein, we present the performance of our developed flexible, stretchable, and multiple sensitive sensors fabricated from GWF embedded in polydimethylsiloxane (PDMS) film substrate. The GWF/PDMS sensor shows a pressure sensitivity of 0.0142 kPa−1 in a wide linearity range of 0–20 kPa, an outstanding Gauge factor (GF) of 582 at a strain of 6.2 %, and a very high positive sensitivity of 0.0238 °C−1 in the temperature range of 25–80 °C. A practical application as a high sensitivity air pressure sensor able to measure low pressures (in the range of Pa to kPa) was also demonstrated. This sensor platform having desirable performance characteristics is an excellent candidate for wearable devices in the healthcare sector. [Display omitted] •Graphene mesh-like architecture deposited on PDMS film uses as a piezo-resistive material.•The flexible and stretchable nanocomposite shows multi-sensing with different external stimuli.•Highly sensitive pressure, strain and temperature of GWF/PDMS sensors is an excellent candidate for wearable devices.•The high performance of the sensor compared with other sensing materials can be attributed to the unique structure of the GWF.•This sensor platform having desirable performances are a promising choice for practical application in the healthcare sector.
ISSN:0927-7765
1873-4367
DOI:10.1016/j.colsurfb.2022.112940