Back to Search
Start Over
A novel multifunctional sensor based on rGO-CuxONW-AgNW/PDMS composites for detecting gas and pressure.
- Source :
-
Ceramics International . Feb2024:Part B, Vol. 50 Issue 3, p5707-5716. 10p. - Publication Year :
- 2024
-
Abstract
- Flexible electronic skin (e-skin) for mobile health applications urgently requires wearable pressure-gas sensors, which can be used for body motion detection and identification of environmental gas targets. However, applying pressure-gas sensors to e-skin has always faced challenges of high sensitivity, wide detection range, and high stability. Herein, a novel multifunctional pressure-gas sensor was proposed that 2D reduced graphene oxide (rGO) with 1D copper nanowires (CuNWs) and silver nanowires (AgNWs) form 3D porous composite aerogels by self-assembly and in situ oxidation CuNWs convert to Cu x O nanowires (Cu x ONWs), which ensures efficient electron transfer and sufficient gas adsorption sites. Furthermore, the polydimethylsiloxane (PDMS) layer dramatically improved the electro-mechanical properties of the sensing elastomer. The rGO-Cu x ONW-AgNW/PDMS (GCOAP) sensing elastomer realizes bi-directional resistive response of pressure (falling) and gas (rising), and is capable of fast response (66 ms) to large pressures (1600 kPa) with high sensitivity (1.405 kPa−1) and specific identification of hazardous NH 3 gas at room temperature. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 02728842
- Volume :
- 50
- Issue :
- 3
- Database :
- Academic Search Index
- Journal :
- Ceramics International
- Publication Type :
- Academic Journal
- Accession number :
- 174322817
- Full Text :
- https://doi.org/10.1016/j.ceramint.2023.11.351