Comparative study of energy harvesting from high temperature piezoelectric single crystals

Vishwas Bedekar, Josiah Oliver, Shujun Zhang, Shashank Priya

Research output: Contribution to journalArticlepeer-review

31 Scopus citations


This experimental study reports the mechanical energy harvesting from piezoelectric single crystal materials with operating range higher than 500 °C and compares their performance with state-of-the-art soft Pb(Zr,Ti)O 3 (PZT) material. Yttrium calcium oxyborate YCa4O(BO 3)3 (YCOB) and lanthanum gallium silicate La 3Ga5SiO14 (LGS) crystals were found to exhibit stable piezoelectric and dielectric properties up to 1000 °C. Single and three-crystal stacks of YCOB, LGS, lithium niobate LiNbO3 (LN), and soft PZT were tested in longitudinal mode configuration (33-mode). The power density of soft PZT was found to be about three orders of magnitude higher than that of high temperature crystals at room temperature however its operating range was limited to 150 °C. On the other hand, YCOB and LGS crystals annealed at 600 °C exhibited similar magnitude of power as that at room temperature.

Original languageEnglish (US)
Pages (from-to)914061-914065
Number of pages5
JournalJapanese Journal of Applied Physics
Issue number9 Part 1
StatePublished - 2009

All Science Journal Classification (ASJC) codes

  • General Engineering
  • General Physics and Astronomy


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