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We have synthesized BaTiO3 nanowires (NWs) via a simple hydrothermal method at low temperature and developed a lead-free, flexible nanocomposite generator (NCG) device by a simple, low-cost, and scalable spin-coating method. The hydrothermally grown BaTiO3 NWs are mixed in a polymer matrix without a toxic dispersion enhancer to produce a piezoelectric nanocomposite (p-NC). During periodical and regular bending and unbending motions, the NCG device fabricated by utilizing a BaTiO3 NWs-polydimethylsiloxane (PDMS) composite successfully harvests the output voltage of ∼ 7.0 V and current signals of ∼ 360 nA, which are utilized to drive a liquid crystal display (LCD). We also characterized the instantaneous power (∼ 1.2 μW) of the NCG device by calculating the load voltage and current through the connected external resistance.
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Park et al. (2014) studied this question.
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