In the experiment, as a piezoelectric material, cellulose Piezo Paper is prepared with aluminum electrode deposition. By attaching the Piezo Paper on an aluminum beam, a cantilever type piezoelectric energy harvester is made. The given width of the beam is 5cm, and sets of Piezo Papers with different width and number of beams are made as, 5cm x 1, 2.5cm x 2, 1.66cm x 3, 1.25cm x 4, 1cm x 5 and 0.83cm x 6 beams. Cantilever beams are vibrated on a shaker at its resonance frequency and examined their electrical characteristics in terms of output voltage and current. The results are compared with the original beam of 5 cm wide.
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Jongbeom Im, Linding Zhai, Jedol Dayou, Jeong-Woong Kim, Jaehwan Kim, "The effects of width reduction on cantilever type piezoelectric energy harvesters," Proc. SPIE 9434, Nanosensors, Biosensors, and Info-Tech Sensors and Systems 2015, 94340W (3 April 2015);