Novel composite piezoelectric material for energy harvesting applications

Giedrius Janusas; Asta Guobiene; Arvydas Palevicius; Igoris Prosycevas; Sigita Ponelyte; Valentinas Baltrusaitis; Rokas Sakalys

doi:10.1117/12.2176628

2 April 2015 Novel composite piezoelectric material for energy harvesting applications

Giedrius Janusas, Asta Guobiene, Arvydas Palevicius, Igoris Prosycevas, Sigita Ponelyte, Valentinas Baltrusaitis, Rokas Sakalys

Author Affiliations +

Proceedings Volume 9430, Electroactive Polymer Actuators and Devices (EAPAD) 2015; 943030 (2015) https://doi.org/10.1117/12.2176628
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2015, San Diego, California, United States

Abstract

Past few decades were concentrated on researches related to effective energy harvesting applied in modern technologies, MEMS or MOEMS systems. There are many methods for harvesting energy as, for example, usage of electromagnetic devices, but most dramatic changes were noticed in the usage of piezoelectric materials in small scale devices. Major limitation faced was too small generated power by piezoelectric materials or high resonant frequencies of such smallscale harvesters. In this research, novel composite piezoelectric material was created by mixing PZT powder with 20% solution of polyvinyl butyral in benzyl alcohol. Obtained paste was screen printed on copper foil using 325 mesh stainless steel screen and dried for 30 min at 100 °C. Polyvinyl butyral ensures good adhesion and flexibility of a new material at the conditions that requires strong binding. Five types of a composite piezoelectric material with different concentrations of PZT (40%, 50%, 60%, 70% and 80 %) were produced. As the results showed, these harvesters were able to transform mechanical strain energy into electric potential and, v.v. In experimental setup, electromagnetic shaker was used to excite energy harvester that is fixed in the custom-built clamp, while generated electric potential were registered with USB oscilloscope PICO 3424. The designed devices generate up to 80 μV at 50 Hz excitation. This property can be applied to power microsystem devices or to use them in portable electronics and wireless sensors. However, the main advantage of the created composite piezoelectric material is possibility to apply it on any uniform or nonuniform vibrating surface and to transform low frequency vibrations into electricity.

Citation Download Citation

Giedrius Janusas, Asta Guobiene, Arvydas Palevicius, Igoris Prosycevas, Sigita Ponelyte, Valentinas Baltrusaitis, and Rokas Sakalys "Novel composite piezoelectric material for energy harvesting applications", Proc. SPIE 9430, Electroactive Polymer Actuators and Devices (EAPAD) 2015, 943030 (2 April 2015); https://doi.org/10.1117/12.2176628

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KEYWORDS

Ferroelectric materials

Composites

Energy harvesting

Electronics

Prisms

Sensors

Electromagnetism

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