A photonic sintering derived Ag flake/nanoparticle-based highly sensitive stretchable strain sensor for human motion monitoring
| Autor: | Yunseok Jang, Minhun Jung, Kyoohee Woo, Inhyuk Kim, Jeongdai Jo, Kwon Sin, Pyungsam Ko, Sungwon Lee, Hongseok Youn, Jooho Moon, Zhaoyang Zhong, Seung-Hyun Lee |
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| Rok vydání: | 2018 |
| Předmět: |
Silver
Fabrication Materials science Movement Stretchable electronics Nanoparticle Sintering 02 engineering and technology 010402 general chemistry Elastomer 01 natural sciences Wearable Electronic Devices chemistry.chemical_compound Humans General Materials Science Dimethylpolysiloxanes Photons Polydimethylsiloxane business.industry Equipment Design 021001 nanoscience & nanotechnology 0104 chemical sciences Elastomers chemistry Nanocrystal Gauge factor Nanoparticles Optoelectronics 0210 nano-technology business |
| Zdroj: | Nanoscale. 10:7890-7897 |
| ISSN: | 2040-3372 2040-3364 |
| DOI: | 10.1039/c7nr09421c |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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