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For piezoelectric energy harvesters, a large volume of piezoelectric material with a high figure of merit is essential to obtain a higher power density. The work describes the growth of highly (001) oriented sputtered lead zirconate titanate (PZT) films (f ≈ 0.99) exceeding 4 µm in thickness on both sides of an Ni foil to produce a bimorph structure. These films are incorporated in novel wrist‐worn...
A wrist-worn eccentric rotor-based energy harvester utilizing multiple magnetically plucked flower petal-shaped bimorph lead zirconate titanate (PZT) thin-film beams was designed and fabricated. The bimorph beams were formed by depositing {001} oriented PZT films up to 5.4 μm in thickness on both sides of a 50 μm thick nickel foil. The prototype was characterized with an analytical system-level model...
In an effort for better understanding on (Bi0.5Na0.5)TiO3, donors such as Nb5+ and W6+ were doped by a conventional solid state mixing process. Their doping effects on ferroelectric and piezoelectric properties of (Bi0.5Na0.5)Ti1-xDxO3 were investigated. The solubility limit of Nb (xles0.01) and W (xles0.008) was determined by the X-ray diffraction after a typical sintering at 1150degC for 2 hours...
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