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Fabrication and characterization of free-standing thick-film piezoelectric cantilevers for energy harvesting
| Content Provider | Semantic Scholar |
|---|---|
| Author | Kok, Swee Leong White, Neil M. Harris, Nick R. |
| Copyright Year | 2009 |
| Abstract | Research into energy harvesting from ambient vibration sources has attracted great interest over the last few years, largely as a result of advances in the areas of wireless technology and low-power electronics. One of the mechanisms for converting mechanical vibration to electrical energy is the use of piezoelectric materials, typically operating as a cantilever in a bending mode, which generate a voltage across the electrodes when they are stressed. Typically, the piezoelectric materials are deposited on a non-electro-active substrate and are physically clamped at one end to a rigid base. The presence of the substrate does not contribute directly to the electrical output, but merely serves as a mechanical supporting platform, which can pose difficulties for integration with other microelectronic devices. The aim of this paper is to describe a novel thick-film free-standing cantilever structure that does not use a supporting platform and has the advantage of minimizing the movement constraints on the piezoelectric material, thereby maximizing the electrical output power. Two configurations of the composite cantilever structure were investigated: unimorph and multimorph. A unimorph consists of a pair of silver/palladium (Ag/Pd) electrodes sandwiching a laminar layer of lead zirconate titanate (PZT). A mulitmorph is an extended version of the unimorph with two pairs of Ag/Pd electrodes and three laminar sections of PZT. |
| Starting Page | 124010 |
| Ending Page | 124010 |
| Page Count | 1 |
| File Format | PDF HTM / HTML |
| DOI | 10.1088/0957-0233/20/12/124010 |
| Volume Number | 20 |
| Alternate Webpage(s) | https://eprints.soton.ac.uk/267965/1/Fabrication_and_characterisation_of_free-standing_thick-film_piezoelectric_cantilevers_for_energy_harvesting.pdf |
| Alternate Webpage(s) | https://doi.org/10.1088/0957-0233%2F20%2F12%2F124010 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
