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Cited 27 time in
A photonic sintering derived Ag flake/nanoparticle-based highly sensitive stretchable strain sensor for human motion monitoring
- A photonic sintering derived Ag flake/nanoparticle-based highly sensitive stretchable strain sensor for human motion monitoring
- Kim, Inhyuk; Woo, Kyoohee; Zhong, Zhaoyang; Ko, Pyungsam; Jang, Yunseok; Jung, Minhun; Jo, Jeongdai; Kwon, Sin; Lee, Seung-Hyun; Lee, Sungwon; Youn, Hongseok; Moon, Jooho
- DGIST Authors
- Lee, Sungwon
- Issue Date
- Nanoscale, 10(17), 7890-7897
- Article Type
- Elastomers; Hybrid materials; Mechanical stability; Microchannels; Polydimethylsiloxane; Silicones; Sintering; Electrical conductivity; Intense pulsed light; Localized heating; Maximum strains; Photonic sintering; Polydimethylsiloxane PDMS; Sensor sensitivity; Stretchable electronics; Silver
- Recently, the demand for stretchable strain sensors used for detecting human motion is rapidly increasing. This paper proposes high-performance strain sensors based on Ag flake/Ag nanocrystal (NC) hybrid materials incorporated into a polydimethylsiloxane (PDMS) elastomer. The addition of Ag NCs into an Ag flake network enhances the electrical conductivity and sensitivity of the strain sensors. The intense localized heating of Ag flakes/NCs is induced by intense pulsed light (IPL) irradiation, to achieve efficient sintering of the Ag NCs within a second, without damaging the PDMS matrix. This leads to significant improvement in the sensor sensitivity. Our strain sensors are highly stretchable (maximum strain = 80%) and sensitive (gauge factor = 7.1) with high mechanical stability over 10 000 stretching cycles under 50% strain. For practical demonstration, the fabrication of a smart glove for detecting the motions of fingers and a sports band for measuring the applied arm strength is also presented. This study provides an effective method for fabricating elastomer-based high-performance stretchable electronics. © 2018 The Royal Society of Chemistry.
- Royal Society of Chemistry
- Related Researcher
Bio-Harmonized Device Lab
Ultrathin Device Fabrication; Bio sensors Development; Functional Material Development
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- Department of Emerging Materials ScienceBio-Harmonized Device Lab1. Journal Articles
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