期刊
ADVANCED FUNCTIONAL MATERIALS
卷 30, 期 29, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adfm.201909652
关键词
electronic skin; energy harvesters; liquid metal nanoparticles; stretchable electronics; tactile interfaces; triboelectric nanogenerators
类别
资金
- National Key Research and Development Program of China [2016YFA0202703]
- National Natural Science Foundation of China [51605034, 51711540300]
- Hundred Talents Program of the Chinese Academy of Science
- State key laboratory of precision measuring technology and instruments (Tianjin University)
- National Research Foundation of Korea [NRF-2017K2A9A2A06015440]
Energy-harvesting electronic skin (E-skin) is highly promising for sustainable and self-powered interactive systems, wearable human health monitors, and intelligent robotics. Flexible/stretchable electrodes and robust energy-harvesting components are critical in constructing soft, wearable, and energy-autonomous E-skin systems. A stretchable energy-harvesting tactile interactive interface is demonstrated using liquid metal nanoparticles (LM-NPs)-based electrodes. This stretchable energy-harvesting tactile interface relies on triboelectric nanogenerator composed of a galinstan LM-NP-based stretchable electrode and patterned elastic polymer friction and encapsulation layer. It provides stable and high open-circuit voltage (268 V), short-circuit current (12.06 mu A), and transferred charges (103.59 nC), which are sufficient to drive commercial portable electronics. As a self-powered tactile sensor, it presents satisfactory and repeatable sensitivity of 2.52 V center dot kPa(-1) and is capable of working as a touch interactive keyboard. The demonstrated stretchable and robust energy-harvesting E-skin using LM-NP-based electrodes is of great significance in sustainable human-machine interactive system, intelligent robotic skin, security tactile switches, etc.
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