期刊
ADVANCED MATERIALS TECHNOLOGIES
卷 4, 期 2, 页码 -出版社
WILEY
DOI: 10.1002/admt.201800500
关键词
3D-printing; human-machine interfaces; liquid deposition modeling; multiaxial piezoresistive sensor; nanocomposites
资金
- Pioneer Research Center program through the National Research Foundation of Korea (NRF) - Korea Government (MSIT) [NRF-2013M3C1A3065528]
- Ministry of Science, ICT and Future Planning of the Republic of Korea
- Institute for Information & Communications Technology Promotion of Korea [R7520-16-0010]
- Institute for Information & Communication Technology Planning & Evaluation (IITP), Republic of Korea [2016-0-00462-003, R7520-16-0010] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- National Research Foundation of Korea [2013M3C1A3065528, 31Z20130012940] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
As a new area of biological integration systems ranging from fitness to costume, arable electronic devices are extensively investigated and recently focused on the development of customized and highly interactive devices with human-friendly factors. Here, a facile method of integrating a three-dimensional printing (3DP) with stretchable and conductive nanocomposite materials to form a multiaxial piezoresistive sensor that can detect human motion is presented. The multiaxial piezoresistive sensors are fabricated through direct 3DP of nanocomposites based on graphene nanoplatelets (GNPs), silver nanoparticles (AgNPs), and polyurethane. The sensor can detect not only compression, but also tensile strain upto more than 160%. Based on the synergy between GNPs and AgNPs, the sensor shows high sensitivity with a gauge factor of 48.2, which is a much higher value considering that most of the previously reported stretchable strain sensors are less than 35. In addition to the high sensitivity, the GNPs/AgNPs nanocomposite sensor exhibits a fast response time and excellent stability over 500 cycles. When the sensor is integrated into an LED light system, it functions as an interactive device that can control the intensity of light by detecting various human motions such as the bending of fingers.
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