title: Lead-free BaTiO3 nanowires-based flexible nanocomposite generator.
abstract: 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.
authors: The 4th Research and Development Institute-3, Agency for Defense Development (ADD), Yuseong P.O. Box 35, Daejeon 305-600, Republic of Korea. kipark@add.re.kr.
authors: Kwi-Il
authors: KI
authors: Park
authors: Soo Bin
authors: SB
authors: Bae
authors: Seong Ho
authors: SH
authors: Yang
authors: Hyung Ik
authors: HI
authors: Lee
authors: Kisu
authors: K
authors: Lee
authors: Seung Jun
authors: SJ
authors: Lee