Ferroelectric dipole electrets for output power enhancement in electrostatic vibration energy harvesters

Haruhiko Asanuma, Hiroyuki Oguchi, Motoaki Hara, Ryo Yoshida, Hiroki Kuwano

研究成果: Article査読

20 被引用数 (Scopus)

抄録

We propose a ferroelectric dipole electret composed of polarized lead zirconate titanate. Deep insight into the physics behind the parallel plate capacitor theoretically predicts that we can extract large electric field near the surface of the ferroelectric dipole electret by increasing its surface charge density and thickness. Experiment for ferroelectric dipole electret shows good agreement with the theory. The maximum output power density of electrostatic vibration energy harvesters using the ferroelectric dipole electret was 78 μW/cm3, a three-fold increase over a conventional polymer electret. Our results will pave the way for use of ferroelectrics as electrets.

本文言語English
論文番号162901
ジャーナルApplied Physics Letters
103
16
DOI
出版ステータスPublished - 2013 10 14

ASJC Scopus subject areas

  • 物理学および天文学(その他)

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