Journal
NANO ENERGY
Volume 38, Issue -, Pages 43-50Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.nanoen.2017.05.047
Keywords
Hybrid nanogenerator; Piezoelectric; Triboelectric; Electrospinnig; Healthcare monitoring
Categories
Funding
- National Key Research and Development Program of China [2016YFA0202701]
- National Natural Science Foundation of China [61674004, 91323304]
- Beijing Science & Technology Project [D151100003315003]
- Beijing Natural Science Foundation of China [4141002]
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With the rapid development of wearable electronics like artificial e-skins and smart patch, harvesting biomechanical energy and realizing self-powered sensing are of essential importance for achieving sustainable and efficient function of the system. Here we report a flexible hybrid device that can be conformally attached on soft surface like human skin to harvest diversity touch energies based on electrospun nanofiber mat. Facilitated by the working mechanisms of triboeletric and piezoelectric, the device can generate maximum peak power up to 84 mu W/cm(2) and 0.11 mu W/cm(2) for the TENG and PENG part when stimulated by a compressive stress, which can enhance the energy harvesting efficiency and expand its application areas. By virtue of the high sensitivity of the piezoelectric nanomaterial, the device can also be attached on different parts of body for real-time monitoring the human physiological signals such as respiratory information and radial artery pulse, which shows potential value in self-powered e-skins and healthcare monitoring systems.
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