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Open AccessArticle

Stretchable and High-performance Sensor films Based on Nanocomposite of Polypyrrole/SWCNT/Silver Nanowire

1
School of Advanced Materials Engineering, Kookmin University, Seoul 136-702, Korea
2
Advanced Technology Research Dep. LG Japan Lab Inc., 4-13-14, Higashi Shinagawa, Shinagawa-ku, Tokyo 140-0002, Japan
3
Institute of Innovative Research Laboratory for Future Interdisciplinary Research, Tokyo Institute of Technology, Yokohama 226-8503, Japan
*
Author to whom correspondence should be addressed.
Nanomaterials 2020, 10(4), 696; https://doi.org/10.3390/nano10040696
Received: 5 March 2020 / Revised: 2 April 2020 / Accepted: 3 April 2020 / Published: 7 April 2020
(This article belongs to the Special Issue Nano-Hybrids: Synthesis, Characterization and Applications)
We report the fabrication of stretchable sensor films (SSF) using a composite of functionalized polypyrrole- single-walled carbon nanotube (SWCNT)-silver nanowire hybrid networks embedded into a cross-linked polydimethylsiloxane elastomer. The SSF exhibited low resistivity of 30 Ω/sq and an outstanding mechanical elasticity of up to 25% (no visible change in the sheet resistance after 100 cycle at stretching-release test of 25%). These SSFs were responsive to 1 ppm ammonia gas even at a low temperature of 40 °C with 20% relative humidity and also maintained reproducibility and reversibility when repeatedly exposed to ammonia gas more than 100 times. In addition, it was confirmed that the sensor film was hardly affected even at a relative humidity range of 20% to 80%. View Full-Text
Keywords: silver nanowire; single-walled carbon nanotubes; polypyrrole; stretchable; transparent; gas sensor silver nanowire; single-walled carbon nanotubes; polypyrrole; stretchable; transparent; gas sensor
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MDPI and ACS Style

Hwang, B.-Y.; Du, W.X.; Lee, H.-J.; Kang, S.; Takada, M.; Kim, J.-Y. Stretchable and High-performance Sensor films Based on Nanocomposite of Polypyrrole/SWCNT/Silver Nanowire. Nanomaterials 2020, 10, 696.

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