期刊
NANOSCALE
卷 8, 期 40, 页码 17632-17638出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6nr05784e
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资金
- Gyeongnam National University of Science and Technology (GNTECH) Grant
- Future Planning
- Climate Change Research Hub of KAIST [N11160019]
Lead-free piezoelectric 0.5(Ba0.7Ca0.3)TiO3-0.5Ba(Zr0.2Ti0.8)O-3 (BCTZ) nanoparticles (NPs) composed of earth-abundant elements were adopted for use in a flexible composite-based piezoelectric energy harvester (PEH) that can convert mechanical deformation into electrical energy. The solid-state synthesized BCTZ NPs and silver nanowires (Ag NWs) chosen to reduce the toxicity of the filler materials were blended with a polydimethylsiloxane (PDMS) matrix to produce a piezoelectric nanocomposite (p-NC). The naturally flexible polymer-based p-NC layers were sandwiched between two conductive polyethylene terephthalate plastic substrates to achieve a flexible energy harvester. The BCTZ NP-based PEH effectively generated an output voltage peak of similar to 15 V and a current signal of similar to 0.8 mu A without time-dependent degradation. This output was adequate to operate a liquid crystal display (LCD) and to turn on six blue light emitting diodes (LEDs).
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