Method for manufacturing energy harvester comprising piezoelectric polymer microstructure array
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United States of America Patent
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Apr 11, 2017
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Feb 26, 2015
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Jan 21, 2014
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Abstract
A method for manufacturing an energy harvester including a piezoelectric polymer microstructure array. The method includes: preparing a micro-column array of a piezoelectric polymer on a substrate; supplying a plate electrode as an upper electrode, allowing the substrate and the upper electrode to form a pair of plate electrodes; applying a DC voltage between the pair of the plate electrodes; heating the substrate to a temperature higher than a glass transition temperature of the piezoelectric polymer and performing rheological formation of the micro-column array with the DC voltage still being applied until the column array of the piezoelectric polymer reaches the upper electrode to form a mushroom-shaped structure array; and cooling and solidifying the piezoelectric polymer to obtain the piezoelectric energy harvester.
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