Fabrication and characterization of low temperature sintered hard piezoelectric ceramics for multilayer piezoelectric energy harvesters

Intae Seo, Sora Jo, Dae Su Kim, Hyung Won Kang, Sahn Nahm, Seung Ho Han

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

In this study, 0.65Pb(Zr0.465Ti0.545)O3-0.35Pb(Zn1/6Ni1/6Nb2/3)O3, doped with 3.0 mol% MnCO3 and 1.0 mol% CuO (M3.0C1.0PZT-PZNN), was investigated as a hard piezoelectric ceramic for multilayer ceramic piezoelectric energy harvesters (MLC-PEHs). These PEHs showed a high output performance that was partly ascribed to the hardening effect of MnCO3. In contrast, a single-layer ceramic piezoelectric energy harvester (SLC-PEH), containing M3.0C1.0PZT-PZNN, exhibited a higher output power density than that containing an analogous non-Mn-doped soft piezoelectric ceramic (C1.0PZT-PZNN), especially at high accelerations. In the fabricated MLC-PEH, containing an M3.0C1.0PZT-PZNN-based five-layer ceramic and a pure Ag inner electrode, no interdiffusion was observed between the electrode and the ceramic layers, and the corresponding interface was clear and smooth. This MLC-PEH, which exhibited a high output power density and a relatively large current, was used to charge a 0.22 F capacitor at its resonance frequency and an acceleration of 1.5 G, achieving a charging rate higher than that of the SLC-PEH.

Original languageEnglish
Pages (from-to)16688-16695
Number of pages8
JournalCeramics International
Volume47
Issue number12
DOIs
Publication statusPublished - 2021 Jun 15

Keywords

  • Multilayer
  • PZT
  • Piezoelectric energy harvester
  • Piezoelectric properties

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Process Chemistry and Technology
  • Surfaces, Coatings and Films
  • Materials Chemistry

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