Ferroelectric dipole electrets prepared from soft and hard PZT ceramics in electrostatic vibration energy harvesters

H. Asanuma, H. Oguchi, M. Hara, H. Kuwano

Research output: Contribution to journalConference articlepeer-review

4 Citations (Scopus)

Abstract

Aiming at longer stability of surface potential, we propose a ferroelectric dipole electret (FDE) prepared from hard ferroelectric material. We compared output power of electrostatic vibration energy harvester and surface potential stability between FDEs prepared from soft and hard PZT ceramics, as well as a CYTOP polymer electret. The hard FDE showed a seven-fold increase in output power over the soft FDE and nine-fold increase over the CYTOP polymer electret. The hard FDE also showed longer stability of surface potential than that of the soft FDE, whereas the stability of the hard FDE was not yet comparable to that of CYTOP polymer electret. A FDE prepared from harder PZT ceramic (with higher coercive electric field and Curie temperature) may provide more stability in surface potential.

Original languageEnglish
Article number012041
JournalJournal of Physics: Conference Series
Volume476
Issue number1
DOIs
Publication statusPublished - 2013
Event13th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications, PowerMEMS 2013 - London, United Kingdom
Duration: 2013 Dec 32013 Dec 6

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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