Cited 27 time in webofscience Cited 27 time in scopus

A photonic sintering derived Ag flake/nanoparticle-based highly sensitive stretchable strain sensor for human motion monitoring

Title
A photonic sintering derived Ag flake/nanoparticle-based highly sensitive stretchable strain sensor for human motion monitoring
Authors
Kim, InhyukWoo, KyooheeZhong, ZhaoyangKo, PyungsamJang, YunseokJung, MinhunJo, JeongdaiKwon, SinLee, Seung-HyunLee, SungwonYoun, HongseokMoon, Jooho
DGIST Authors
Lee, Sungwon
Issue Date
2018-05
Citation
Nanoscale, 10(17), 7890-7897
Type
Article
Article Type
Article
Keywords
ElastomersHybrid materialsMechanical stabilityMicrochannelsPolydimethylsiloxaneSiliconesSinteringElectrical conductivityIntense pulsed lightLocalized heatingMaximum strainsPhotonic sinteringPolydimethylsiloxane PDMSSensor sensitivityStretchable electronicsSilver
ISSN
2040-3364
Abstract
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.
URI
http://hdl.handle.net/20.500.11750/6414
DOI
10.1039/c7nr09421c
Publisher
Royal Society of Chemistry
Related Researcher
  • Author Lee, Sungwon Bio-Harmonized Device Lab
  • Research Interests Ultrathin Device Fabrication; Bio sensors Development; Functional Material Development
Files:
There are no files associated with this item.
Collection:
Department of Emerging Materials ScienceBio-Harmonized Device Lab1. Journal Articles


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