Elastomeric transparent capacitive sensors based on an interpenetrating composite of silver nanowires and polyurethane

By Wei Hu, X. Niu, Ran Zhao, Qibing Pei. 2013

298 citations recorded by the source corpus.

Highly flexible transparent capacitive sensors have been demonstrated for the detection of deformation and pressure. The elastomeric sensors employ a pair of compliant electrodes comprising silver nanowire networks embedded in the surface layer of polyurethane matrix, and a highly compliant dielectric spacer sandwiched between the electrodes. The capacitance of the sensor sheets increases linearly with strains up to 60% during uniaxial stretching, and linearly with externally applied transverse pressure from 1 MPa down to 1 kPa. Stretchable sensor arrays consisting of 10 × 10 pixels have also been fabricated by patterning the composite electrodes into X-Y addressable passive matrix.

Subfields: Biomedical Engineering, Cognitive Neuroscience, Electrical and Electronic Engineering

View Paper: https://www.semanticscholar.org/paper/1e436ab93666ab7cfba00ef438b49ea07765f1d4

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Biomedical Engineering

1. Wei Hu
2. Qibing Pei
3. Jiajie Liang
4. Uttandaraman Sundararaj
5. Zhigang Suo
6. Wei Hong
7. G. Kofod

In Electrical and Electronic Engineering

1. Jiajie Liang
2. Uttandaraman Sundararaj

Citations in the corpus

• Flexible transparent conductive materials based on silver nanowire networks: a review (2013, unknown): “Capacitive sensor sheets fabricated by employing AgNW networks embedded in the surface layer of a polyurethane matrix exhibit good stretchability and transparency [185].”
• The Emergence of AI-Based Wearable Sensors for Digital Health Technology: A Review (2023, background): “The piezoresistive sensitivity in polymer nanocomposite-based sensors is much larger than their piezo-capacitive sensitivities, which are typically less than 1 [38,109].”
• All-graphene strain sensor on soft substrate (2017, background): “Furthermore, materials employed in the sensor must be thin and light weight with high transparency for application inwearable electronic devices and their visual displays [13,14].”
• Silver nanowire percolation network soldered with graphene oxide at room temperature and its application for fully stretchable polymer light-emitting diodes. (2014, background): “limit the degree of junction disjointing and nanowire sliding.(35,38,39,49) The elastomeric matrix can help distribute the stress more uniformly.”