Acoustic energy harvesting using resonant cavity of a sonic crystal

Liang Yu Wu, Lien Wen Chen, Chia Ming Liu

Research output: Contribution to journalArticlepeer-review

162 Citations (Scopus)


This paper presents the development of an acoustic energy harvester using the sonic crystal and the piezoelectric material. A point defect is created by removing a rod from a perfect sonic crystal. The point defect in the sonic crystal acts as a resonant cavity, and the acoustic waves at the resonant frequency of the cavity can be localized in the cavity. The power generation from acoustic energy is based on the effect of the wave localization in the cavity of the sonic crystal and the direct piezoelectric effect of the piezoelectric material.

Original languageEnglish
Article number013506
JournalApplied Physics Letters
Issue number1
Publication statusPublished - 2009

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)


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