Engineered domain configuration and piezoelectric energy harvesting in 0.7Pb(Mg 1/3Nb 2/3)O 3-0.3PbTiO 3 single crystals

Hyun Cheol Song, Chong-Yun Kang, Seok Jin Yoon, Dae Yong Jeong

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The performance of cantilever piezoelectric energy harvesters using three types of piezoelectric materials, relaxor ferroelectric 0.7Pb(Mg 1/3Nb 2/3)O 3-0.3PbTiO 3 (PMN-PT) single crystals oriented along the <110> and <001> directions, and a PZT-based ceramic, were investigated. The <110> and <001> oriented PMN-PT single crystals, which have a rhombohedral phase and spontaneous polarization along the <111> direction, presented electromechanical coupling factor k31's of 0.78 and 0.42, respectively. The cantilever-type energy harvester operated by 31 resonance mode generated a larger output power of 1.07 mW for the <110> oriented PMN-PT single crystal compared to those of the other materials. The effective electromechanical coupling factor of the piezoelectric energy harvester with the <110> oriented crystal also reached 0.25, not achievable with the other piezoelectric materials. These results demonstrate that the domain engineering of the piezoelectric single crystals can provide higher design flexibility for a tiny energy harvester.

Original languageEnglish
Pages (from-to)499-503
Number of pages5
JournalMetals and Materials International
Volume18
Issue number3
DOIs
Publication statusPublished - 2012 Jun 1

Fingerprint

Harvesters
Energy harvesting
Single crystals
Electromechanical coupling
Piezoelectric materials
single crystals
configurations
piezoelectric crystals
ferroelectric materials
energy
Ferroelectric materials
flexibility
engineering
ceramics
Polarization
Crystals
output
polarization
crystals
Direction compound

Keywords

  • Compression test
  • Crystal growth
  • Domain
  • Ferroelectric materials
  • Piezoelectric energy harvesting

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Metals and Alloys
  • Mechanics of Materials
  • Materials Chemistry

Cite this

Engineered domain configuration and piezoelectric energy harvesting in 0.7Pb(Mg 1/3Nb 2/3)O 3-0.3PbTiO 3 single crystals. / Song, Hyun Cheol; Kang, Chong-Yun; Yoon, Seok Jin; Jeong, Dae Yong.

In: Metals and Materials International, Vol. 18, No. 3, 01.06.2012, p. 499-503.

Research output: Contribution to journalArticle

Song, Hyun Cheol ; Kang, Chong-Yun ; Yoon, Seok Jin ; Jeong, Dae Yong. / Engineered domain configuration and piezoelectric energy harvesting in 0.7Pb(Mg 1/3Nb 2/3)O 3-0.3PbTiO 3 single crystals. In: Metals and Materials International. 2012 ; Vol. 18, No. 3. pp. 499-503.
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