Increasing Energy-harvesting ability of piezoelectric unimorph cantilevers using Spring Supports

Kyung Bum Kim; San Nahm; Tae Hyun Sung; Jong Hoo Paik; Hyoung Jae Kim

doi:10.3938/jkps.68.1262

Increasing Energy-harvesting ability of piezoelectric unimorph cantilevers using Spring Supports

Kyung Bum Kim, San Nahm, Tae Hyun Sung, Jong Hoo Paik, Hyoung Jae Kim

Department of Materials Science and Engineering

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

3 Citations (Scopus)

Abstract

We fabricated a spring-supported piezoelectric unimorph cantilever (SPUC) with enhanced energy-harvesting characteristics by using a 0.69Pb(Zr_0.47Ti_0.53)O₃–0.31Pb(Ni_0.6Zn_0.4)_1/3Nb_2/3)O₃ + CuO (0.5 mol%) thick film sintered at 950 °C; a spring having a spring constant of 14,320 N/m was used as the cantilever support. The SPUC could generate an output power as high as 29 mW with a spring constant of 14,320 N/m across a resistance of 150 kΩ; this corresponded to a power density of 34 mW/cm³. We, therefore, that the thus-fabricated SPUCs when supported by a spring can harvest increased levels of energy.

Original language	English
Pages (from-to)	1262-1266
Number of pages	5
Journal	Journal of the Korean Physical Society
Volume	68
Issue number	11
DOIs	https://doi.org/10.3938/jkps.68.1262
Publication status	Published - 2016 Jun 1

Keywords

Energy-harvesting
Piezoelectric
Spring
Unimorph Cantilevers

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.3938/jkps.68.1262

Cite this

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title = "Increasing Energy-harvesting ability of piezoelectric unimorph cantilevers using Spring Supports",

abstract = "We fabricated a spring-supported piezoelectric unimorph cantilever (SPUC) with enhanced energy-harvesting characteristics by using a 0.69Pb(Zr0.47Ti0.53)O3–0.31Pb(Ni0.6Zn0.4)1/3Nb2/3)O3 + CuO (0.5 mol%) thick film sintered at 950 °C; a spring having a spring constant of 14,320 N/m was used as the cantilever support. The SPUC could generate an output power as high as 29 mW with a spring constant of 14,320 N/m across a resistance of 150 kΩ; this corresponded to a power density of 34 mW/cm3. We, therefore, that the thus-fabricated SPUCs when supported by a spring can harvest increased levels of energy.",

keywords = "Energy-harvesting, Piezoelectric, Spring, Unimorph Cantilevers",

author = "Kim, {Kyung Bum} and San Nahm and Sung, {Tae Hyun} and Paik, {Jong Hoo} and Kim, {Hyoung Jae}",

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doi = "10.3938/jkps.68.1262",

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T1 - Increasing Energy-harvesting ability of piezoelectric unimorph cantilevers using Spring Supports

AU - Kim, Kyung Bum

AU - Nahm, San

AU - Sung, Tae Hyun

AU - Paik, Jong Hoo

AU - Kim, Hyoung Jae

PY - 2016/6/1

Y1 - 2016/6/1

N2 - We fabricated a spring-supported piezoelectric unimorph cantilever (SPUC) with enhanced energy-harvesting characteristics by using a 0.69Pb(Zr0.47Ti0.53)O3–0.31Pb(Ni0.6Zn0.4)1/3Nb2/3)O3 + CuO (0.5 mol%) thick film sintered at 950 °C; a spring having a spring constant of 14,320 N/m was used as the cantilever support. The SPUC could generate an output power as high as 29 mW with a spring constant of 14,320 N/m across a resistance of 150 kΩ; this corresponded to a power density of 34 mW/cm3. We, therefore, that the thus-fabricated SPUCs when supported by a spring can harvest increased levels of energy.

AB - We fabricated a spring-supported piezoelectric unimorph cantilever (SPUC) with enhanced energy-harvesting characteristics by using a 0.69Pb(Zr0.47Ti0.53)O3–0.31Pb(Ni0.6Zn0.4)1/3Nb2/3)O3 + CuO (0.5 mol%) thick film sintered at 950 °C; a spring having a spring constant of 14,320 N/m was used as the cantilever support. The SPUC could generate an output power as high as 29 mW with a spring constant of 14,320 N/m across a resistance of 150 kΩ; this corresponded to a power density of 34 mW/cm3. We, therefore, that the thus-fabricated SPUCs when supported by a spring can harvest increased levels of energy.

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KW - Piezoelectric

KW - Spring

KW - Unimorph Cantilevers

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Increasing Energy-harvesting ability of piezoelectric unimorph cantilevers using Spring Supports

Abstract

Keywords

ASJC Scopus subject areas

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