Piezoelectric properties of lead-free piezoelectric ceramics and their energy harvester characteristics

In Tae Seo; Chang Hoi Choi; Daniel Song; Min Soo Jang; Bo Yun Kim; Sahn Nahm; Young Sik Kim; Tae Hyun Sung; Hyun Cheol Song

doi:10.1111/jace.12227

Piezoelectric properties of lead-free piezoelectric ceramics and their energy harvester characteristics

In Tae Seo, Chang Hoi Choi, Daniel Song, Min Soo Jang, Bo Yun Kim, Sahn Nahm, Young Sik Kim, Tae Hyun Sung, Hyun Cheol Song

Research output: Contribution to journal › Article › peer-review

40 Citations (Scopus)

Abstract

The energy convergence efficiency (η) and dimensionless figure of merit (DFOM) of CuO-added (Na_0.5K_0.5)NbO₃ (CNKN) ceramics are larger than those of NKN ceramics because of their large Q _m values and small dielectric losses. Moreover, the η and DFOM values of CNKN ceramics are comparable to those of P-5C ceramics, which exhibit the highest η and DFOM. Furthermore, the CNKN harvester exhibits a high power density of 12 mW/cm³ at 93 Hz with a load resistance of 250 kΩ; this is similar to the PZT-based energy harvester, indicating that the CNKN ceramic is a good candidate material for energy harvesters.

Original language	English
Pages (from-to)	1024-1028
Number of pages	5
Journal	Journal of the American Ceramic Society
Volume	96
Issue number	4
DOIs	https://doi.org/10.1111/jace.12227
Publication status	Published - 2013 Apr

ASJC Scopus subject areas

Ceramics and Composites
Materials Chemistry

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title = "Piezoelectric properties of lead-free piezoelectric ceramics and their energy harvester characteristics",

abstract = "The energy convergence efficiency (η) and dimensionless figure of merit (DFOM) of CuO-added (Na0.5K0.5)NbO3 (CNKN) ceramics are larger than those of NKN ceramics because of their large Q m values and small dielectric losses. Moreover, the η and DFOM values of CNKN ceramics are comparable to those of P-5C ceramics, which exhibit the highest η and DFOM. Furthermore, the CNKN harvester exhibits a high power density of 12 mW/cm3 at 93 Hz with a load resistance of 250 kΩ; this is similar to the PZT-based energy harvester, indicating that the CNKN ceramic is a good candidate material for energy harvesters.",

author = "Seo, {In Tae} and Choi, {Chang Hoi} and Daniel Song and Jang, {Min Soo} and Kim, {Bo Yun} and Sahn Nahm and Kim, {Young Sik} and Sung, {Tae Hyun} and Song, {Hyun Cheol}",

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T1 - Piezoelectric properties of lead-free piezoelectric ceramics and their energy harvester characteristics

AU - Seo, In Tae

AU - Choi, Chang Hoi

AU - Song, Daniel

AU - Jang, Min Soo

AU - Kim, Bo Yun

AU - Nahm, Sahn

AU - Kim, Young Sik

AU - Sung, Tae Hyun

AU - Song, Hyun Cheol

PY - 2013/4

Y1 - 2013/4

N2 - The energy convergence efficiency (η) and dimensionless figure of merit (DFOM) of CuO-added (Na0.5K0.5)NbO3 (CNKN) ceramics are larger than those of NKN ceramics because of their large Q m values and small dielectric losses. Moreover, the η and DFOM values of CNKN ceramics are comparable to those of P-5C ceramics, which exhibit the highest η and DFOM. Furthermore, the CNKN harvester exhibits a high power density of 12 mW/cm3 at 93 Hz with a load resistance of 250 kΩ; this is similar to the PZT-based energy harvester, indicating that the CNKN ceramic is a good candidate material for energy harvesters.

AB - The energy convergence efficiency (η) and dimensionless figure of merit (DFOM) of CuO-added (Na0.5K0.5)NbO3 (CNKN) ceramics are larger than those of NKN ceramics because of their large Q m values and small dielectric losses. Moreover, the η and DFOM values of CNKN ceramics are comparable to those of P-5C ceramics, which exhibit the highest η and DFOM. Furthermore, the CNKN harvester exhibits a high power density of 12 mW/cm3 at 93 Hz with a load resistance of 250 kΩ; this is similar to the PZT-based energy harvester, indicating that the CNKN ceramic is a good candidate material for energy harvesters.

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DO - 10.1111/jace.12227

M3 - Article

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JO - Journal of the American Ceramic Society

JF - Journal of the American Ceramic Society

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Piezoelectric properties of lead-free piezoelectric ceramics and their energy harvester characteristics

Abstract

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