A stretchable strain sensor based on a metal nanoparticle thin film for human motion detection
| Autor: | Sanghyeok Kim, Jinjae Lee, Inkyu Park, Daejong Yang, Seunghwa Ryu, Jaehwan Lee, Byong Chon Park |
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| Rok vydání: | 2014 |
| Předmět: |
Silver
Materials science Compressive Strength Metal Nanoparticles Nanoparticle Silver nanoparticle Fingers Motion chemistry.chemical_compound Electrical resistance and conductance Tensile Strength Ultimate tensile strength Electric Impedance Electrochemistry Pressure Humans Nanotechnology General Materials Science Dimethylpolysiloxanes Composite material Thin film Polydimethylsiloxane Wrist Pressure sensor Compressive strength chemistry Stress Mechanical |
| Zdroj: | Nanoscale. 6:11932-11939 |
| ISSN: | 2040-3372 2040-3364 |
| Popis: | Wearable strain sensors for human motion detection are being highlighted in various fields such as medical, entertainment and sports industry. In this paper, we propose a new type of stretchable strain sensor that can detect both tensile and compressive strains and can be fabricated by a very simple process. A silver nanoparticle (Ag NP) thin film patterned on the polydimethylsiloxane (PDMS) stamp by a single-step direct transfer process is used as the strain sensing material. The working principle is the change in the electrical resistance caused by the opening/closure of micro-cracks under mechanical deformation. The fabricated stretchable strain sensor shows highly sensitive and durable sensing performances in various tensile/compressive strains, long-term cyclic loading and relaxation tests. We demonstrate the applications of our stretchable strain sensors such as flexible pressure sensors and wearable human motion detection devices with high sensitivity, response speed and mechanical robustness. |
| Databáze: | OpenAIRE |
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