Research about optimizing lamination condition in order to improve the properties of piezoelectric thick films fabricated by tape casting has found that the highest piezoelectric strain constant (260.2 pC/N) is obtained at 2 MPa pressure and 180 secon...
Research about optimizing lamination condition in order to improve the properties of piezoelectric thick films fabricated by tape casting has found that the highest piezoelectric strain constant (260.2 pC/N) is obtained at 2 MPa pressure and 180 second press time lamination condition. The sintering temperature of the samples was 1100 °C. A piezoelectric energy harvesting (PEH) system was subsequently designed based on a cantilever beam structure, in which an optimized PZT thick film was attached to a stainless steel substrate. Analysis of the frequency tendency of this system’s open circuit voltage identified a maximum peak of 4.08 V <SUB>RMS</SUB> and a resonance frequency of 35Hz. Measurement of the output voltage and output power of the PEH system also revealed that a maximum output power density of 0.21 mW/㎤ could be achieved at a matching load of 900 kΩ. These results show that a material with a sufficiently high energy density for use in energy harvesting devices can be achieved by subjecting a PZT thick film to optimized lamination conditions.