期刊
NANO ENERGY
卷 30, 期 -, 页码 621-629出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.nanoen.2016.10.042
关键词
PVDF; Yb3+; Porous ferroelectret material; Self-polarization; Ferroelectretic nanogenerator; Mechanical energy harvester; Self-powered electronics
类别
资金
- Science and Engineering Research Board, Government of India [SERB/1759/2014-15]
Ytterbium (Yb3+) assisted porous poly(vinylidene fluoride) (PVDF) composite film comprising flexible ferroelectretic nanogenerator (FTNG) is highlighted where traditional poling treatment is completely avoided. The piezoelectric output of FTNG is realized by the co-operative activity of self-polarized -/- -CH2/ -CF2 dipoles with porous electret-like structure in the composite film. Owing to extraordinary ferroelectric and dielectric properties, FTNG is acting as a highly efficient mechanical energy harvester. It is capable to capture several forms of abundant mechanical energy arising from human finger movements, machine vibrations and sound waves. As a proof of concept, under compressive deformation, FTNG is enable to instantly powers up several consumer electronics and thus provides a promising strategy for achieving self-powered electronic devices.
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