Flexible GO/Nb2CTx hybrid films for high-performance piezoresistive sensors

Author(s):  
Zhemin Li ◽  
Surong Yan ◽  
Hongpeng Yang ◽  
Jingjing Jiang ◽  
Guodong Wei ◽  
...  
2017 ◽  
Vol 5 (32) ◽  
pp. 16865-16872 ◽  
Author(s):  
Dongbo Yu ◽  
Liang Ge ◽  
Xinlai Wei ◽  
Bin Wu ◽  
Jin Ran ◽  
...  

A promising strategy is demonstrated for the syntheses of metal organic framework/graphene oxide hybrid films with highly ordered layer-by-layer architecture, and the derived hybrids exhibit remarkable energy storage performances.


RSC Advances ◽  
2015 ◽  
Vol 5 (93) ◽  
pp. 76476-76482 ◽  
Author(s):  
Zhenxun Huang ◽  
Shumei Liu ◽  
Yanchao Yuan ◽  
Jianqing Zhao

A simple strategy for preparing the low-κ FPI hybrids with enhanced properties.


2019 ◽  
Vol 300 ◽  
pp. 349-356 ◽  
Author(s):  
L. Yang ◽  
W. Zheng ◽  
P. Zhang ◽  
J. Chen ◽  
W. Zhang ◽  
...  

Sensors ◽  
2020 ◽  
Vol 20 (16) ◽  
pp. 4406
Author(s):  
Marco Fortunato ◽  
Irene Bellagamba ◽  
Alessio Tamburrano ◽  
Maria Sabrina Sarto

The high demand for multifunctional devices for smart clothing applications, human motion detection, soft robotics, and artificial electronic skins has encouraged researchers to develop new high-performance flexible sensors. In this work, we fabricated and tested new 3D squeezable Ecoflex® open cell foams loaded with different concentrations of graphene nanoplatelets (GNPs) in order to obtain lightweight, soft, and cost-effective piezoresistive sensors with high sensitivity in a low-pressure regime. We analyzed the morphology of the produced materials and characterized both the mechanical and piezoresistive response of samples through quasi-static cyclic compression tests. Results indicated that sensors infiltrated with 1 mg of ethanol/GNP solution with a GNP concentration of 3 mg/mL were more sensitive and stable compared to those infiltrated with the same amount of ethanol/GNP solution but with a lower GNP concentration. The electromechanical response of the sensors showed a negative piezoresistive behavior up to ~10 kPa and an opposite trend for the 10–40 kPa range. The sensors were particularly sensitive at very low deformations, thus obtaining a maximum sensitivity of 0.28 kPa−1 for pressures lower than 10 kPa.


2015 ◽  
Vol 77 (3) ◽  
pp. 620-626 ◽  
Author(s):  
Qiran Xiao ◽  
Marta Giachino ◽  
Reinhold H. Dauskardt

2020 ◽  
Author(s):  
Joana P. Neto ◽  
Adriana Costa ◽  
Joana Vaz Pinto ◽  
André Marques–Smith ◽  
Júlio Costa ◽  
...  

AbstractThis work explored hybrid films of silver nanowires (AgNWs) with indium-doped zinc oxide (IZO) for developing high-performance and low-cost electrocorticography (ECoG) electrodes.The hybrid films achieved a sheet resistance of 6 Ω/sq while maintaining a transparency of ≈60% at 550 nm. Electrodes with 500 μm diameter were fabricated with these films and reached an impedance of 20 kΩ at 1 kHz and a charge storage capacity of 3.2 mC/cm2, a 2× and 320× improvement over IZO electrodes, respectively. Characterization of light-induced artifacts was performed showing that small light intensities (<14 mW/mm2) elicit electrical potential variation in the magnitude order of baseline noise. The validation of electrodes in vivo was achieved by recording electrical neural activity from the surface of rat cortex under anaesthesia. Moreover, the presence of the films did not cause obstruction of light during fluorescence microscopy.The presented film and electrode characterization studies highlighted the capabilities of this hybrid structure to fabricate transparent and flexible electrodes that are able to combine the superior temporal resolution of extracellular electrophysiology with the spatial resolution offered by optical imaging.


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