Patent ID: 9118000
Filing Date: 2015-08-25
Classification: H01L,Y10T

Abstract:
1. A method of manufacturing a flexible piezoelectric energy harvesting device, comprising the steps of: forming a first electrode layer on a first flexible substrate; spin-coating a piezoelectric composite layer on the first electrode layer, wherein the piezoelectric composite layer is produced by mixing piezoelectric powder with polymer; performing heat treatment on the piezoelectric composite layer to harden the piezoelectric composite layer; and bonding a second flexible substrate with a second electrode layer on the hardened piezoelectric composite layer, wherein the heat treatment comprises heating the piezoelectric composite layer at a temperature and time (a) effective to harden the piezoelectric composite layer to a state in which the piezoelectric composite layer has sufficient adhesiveness to adhere to the second flexible substrate in said bonding step without an adhesive material, and (b) that does not deteriorate a flexibility of the piezoelectric composite layer.