Journal
ADVANCED FUNCTIONAL MATERIALS
Volume 26, Issue 8, Pages 1286-1295Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adfm.201503606
Keywords
electronic skins; human-machine interfaces; human-motion monitoring systems; pressure sensors; wearable electronics
Categories
Funding
- National Science Council
- Ministry of Education of the Republic of China
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Electronic skin sensing devices are an emerging technology and have substantial demand in vast practical fields including wearable sensing, robotics, and user-interactive interfaces. In order to imitate or even outperform the capabilities of natural skin, the keen exploration of materials, device structures, and new functions is desired. However, the very high resistance and the inadequate current switching and sensitivity of reported electronic skins hinder to further develop and explore the promising uses of the emerging sensing devices. Here, a novel resistive cloth-based skin-like sensor device is reported that possesses unprecedented features including ultrahigh current-switching behavior of approximate to 10(7) and giant high sensitivity of 1.04 x 10(4)-6.57 x 10(6) kPa(-1) in a low-pressure region of <3 kPa. Notably, both superior features can be achieved by a very low working voltage of 0.1 V. Taking these remarkable traits, the device not only exhibits excellent sensing abilities to various mechanical forces, meeting various applications required for skin-like sensors, but also demonstrates a unique competence to facile integration with other functional devices for various purposes with ultrasensitive capabilities. Therefore, the new methodologies presented here enable to greatly enlarge and advance the development of versatile electronic skin applications.
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