Journal
ACS NANO
Volume 8, Issue 5, Pages 5154-5163Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nn501204t
Keywords
strain sensor; flexible sensor; stretchable sensor; silver nanowire; nanocomposite; piezoresistivity; human motion detection
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Funding
- Industrial Strategic Technology Development Program from the Ministry of Trade Industry and Energy, Republic of Korea [10041618]
- Future-based Technology Development Program (Nano Fields) - Ministry of Science, ICT & Future Planning, Republic of Korea [2013043661]
- Global Frontier Project through the Center for Integrated Smart Sensors - Ministry of Science, ICT & Future Planning, Republic of Korea [2011-0031870]
- Korea Evaluation Institute of Industrial Technology (KEIT) [10041618] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- Ministry of Education, Science & Technology (MoST), Republic of Korea [KIITC03] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- National Research Foundation of Korea [2011-0031870] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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The demand for flexible and wearable electronic devices is increasing due to their facile interaction with human body. Flexible, stretchable and wearable sensors can be easily mounted on clothing or directly attached onto the body. Especially, highly stretchable and sensitive strain sensors are needed for the human motion detection. Here, we report highly flexible, stretchable and sensitive strain sensors based on the nanocomposite of silver nanowire (AgNW) network and PDMS elastomer in the form of the sandwich structure (i.e., AgNW thin film embedded between two layers of PDMS). The AgNW network-elastomer nanocomposite based strain sensors show strong piezoresistivity with tunable gauge factors in the ranges of 2 to 14 and a high stretchability up to 70%. We demonstrate the applicability of our high performance strain sensors by fabricating a glove Integrated with five strain sensors for the motion detection of fingers and control of an avatar in the virtual environment.
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