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

doi:10.1007/s12540-012-3018-y

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

KU-KIST Graduate School of Converging Science and Technology

Research output: Contribution to journal › Article

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 language	English
Pages (from-to)	499-503
Number of pages	5
Journal	Metals and Materials International
Volume	18
Issue number	3
DOIs	https://doi.org/10.1007/s12540-012-3018-y
Publication status	Published - 2012 Jun

Keywords

Compression test
Crystal growth
Domain
Ferroelectric materials
Piezoelectric energy harvesting

ASJC Scopus subject areas

Condensed Matter Physics
Mechanics of Materials
Metals and Alloys
Materials Chemistry

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10.1007/s12540-012-3018-y

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Song, H. C., Kang, C. Y., Yoon, S. J., & Jeong, D. Y. (2012). Engineered domain configuration and piezoelectric energy harvesting in 0.7Pb(Mg _1/3Nb _2/3)O ₃-0.3PbTiO ₃ single crystals. Metals and Materials International, 18(3), 499-503. https://doi.org/10.1007/s12540-012-3018-y

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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.",

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author = "Song, {Hyun Cheol} and Kang, {Chong Yun} and Yoon, {Seok Jin} and Jeong, {Dae Yong}",

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AB - 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.

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KW - Piezoelectric energy harvesting

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