Determination of the appropriate piezoelectric materials for various types of piezoelectric energy harvesters with high output power

Sun Woo Kim; Tae Gon Lee; Dae Hyeon Kim; Ku Tak Lee; Inki Jung; Chong Yun Kang; Seung Ho Han; Hyung Won Kang; Sahn Nahm

doi:10.1016/j.nanoen.2018.12.082

Determination of the appropriate piezoelectric materials for various types of piezoelectric energy harvesters with high output power

Sun Woo Kim, Tae Gon Lee, Dae Hyeon Kim, Ku Tak Lee, Inki Jung, Chong Yun Kang, Seung Ho Han, Hyung Won Kang, Sahn Nahm

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

43 Citations (Scopus)

Abstract

For a type-1 piezoelectric energy harvester (PEH), in which stress develops in the supporting system of the piezoelectric materials, the electromechanical coupling factor (k _ij ) of the piezoelectric materials is important for the output power at the resonance frequency. Therefore, soft-piezoelectric materials are good candidates for these PEHs. For type-2 PEHs, in which stress develops in the piezoelectric material and supporting system, the figure of merit (FOM) of the output power at the resonance frequency is (k _ij ² × Q _m )/s ₁₁ ^E , where Q _m and s ₁₁ ^E are the mechanical quality factor and the elastic compliance of piezoelectric materials, respectively. In particular, the effect of Q _m is very large for these PEHs, indicating that hard-piezoelectric materials are good candidates for type-2 PEHs operating at the resonance frequency. For both type-1 and type-2 PEHs operating at off-resonance frequency, the k _ij ² × d _ij × g _ij is the FOM of the output power of the PEHs, where g _ij is a piezoelectric voltage constant. Therefore, soft-piezoelectric materials are also good candidates for both type-1 and type-2 PEHs operating at the off-resonance frequency.

Original language	English
Pages (from-to)	581-591
Number of pages	11
Journal	Nano Energy
Volume	57
DOIs	https://doi.org/10.1016/j.nanoen.2018.12.082
Publication status	Published - 2019 Mar

Bibliographical note

Funding Information:
This research was supported by the National Research Council of Science & Technology (NST), (No. CAP-17-04-KRISS ) grant by the Korea government ( MSIP ) (No. CAP-17-04-KRISS ) and the authors also thank the KU-KIST graduate school program of Korea University.

Funding Information:
This research was supported by the National Research Council of Science & Technology (NST), (No. CAP-17-04-KRISS) grant by the Korea government (MSIP) (No. CAP-17-04-KRISS) and the authors also thank the KU-KIST graduate school program of Korea University.

Publisher Copyright:
© 2018 Elsevier Ltd

Keywords

FOM
PEH
Piezoelectric materials
Q
k

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
General Materials Science
Electrical and Electronic Engineering

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.nanoen.2018.12.082

Cite this

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title = "Determination of the appropriate piezoelectric materials for various types of piezoelectric energy harvesters with high output power",

abstract = " For a type-1 piezoelectric energy harvester (PEH), in which stress develops in the supporting system of the piezoelectric materials, the electromechanical coupling factor (k ij ) of the piezoelectric materials is important for the output power at the resonance frequency. Therefore, soft-piezoelectric materials are good candidates for these PEHs. For type-2 PEHs, in which stress develops in the piezoelectric material and supporting system, the figure of merit (FOM) of the output power at the resonance frequency is (k ij 2 × Q m )/s 11 E , where Q m and s 11 E are the mechanical quality factor and the elastic compliance of piezoelectric materials, respectively. In particular, the effect of Q m is very large for these PEHs, indicating that hard-piezoelectric materials are good candidates for type-2 PEHs operating at the resonance frequency. For both type-1 and type-2 PEHs operating at off-resonance frequency, the k ij 2 × d ij × g ij is the FOM of the output power of the PEHs, where g ij is a piezoelectric voltage constant. Therefore, soft-piezoelectric materials are also good candidates for both type-1 and type-2 PEHs operating at the off-resonance frequency.",

keywords = "FOM, PEH, Piezoelectric materials, Q, k",

author = "Kim, {Sun Woo} and Lee, {Tae Gon} and Kim, {Dae Hyeon} and Lee, {Ku Tak} and Inki Jung and Kang, {Chong Yun} and Han, {Seung Ho} and Kang, {Hyung Won} and Sahn Nahm",

note = "Funding Information: This research was supported by the National Research Council of Science & Technology (NST), (No. CAP-17-04-KRISS ) grant by the Korea government ( MSIP ) (No. CAP-17-04-KRISS ) and the authors also thank the KU-KIST graduate school program of Korea University. Funding Information: This research was supported by the National Research Council of Science & Technology (NST), (No. CAP-17-04-KRISS) grant by the Korea government (MSIP) (No. CAP-17-04-KRISS) and the authors also thank the KU-KIST graduate school program of Korea University. Publisher Copyright: {\textcopyright} 2018 Elsevier Ltd",

year = "2019",

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doi = "10.1016/j.nanoen.2018.12.082",

language = "English",

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pages = "581--591",

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T1 - Determination of the appropriate piezoelectric materials for various types of piezoelectric energy harvesters with high output power

AU - Kim, Sun Woo

AU - Lee, Tae Gon

AU - Kim, Dae Hyeon

AU - Lee, Ku Tak

AU - Jung, Inki

AU - Kang, Chong Yun

AU - Han, Seung Ho

AU - Kang, Hyung Won

AU - Nahm, Sahn

N1 - Funding Information: This research was supported by the National Research Council of Science & Technology (NST), (No. CAP-17-04-KRISS ) grant by the Korea government ( MSIP ) (No. CAP-17-04-KRISS ) and the authors also thank the KU-KIST graduate school program of Korea University. Funding Information: This research was supported by the National Research Council of Science & Technology (NST), (No. CAP-17-04-KRISS) grant by the Korea government (MSIP) (No. CAP-17-04-KRISS) and the authors also thank the KU-KIST graduate school program of Korea University. Publisher Copyright: © 2018 Elsevier Ltd

PY - 2019/3

Y1 - 2019/3

N2 - For a type-1 piezoelectric energy harvester (PEH), in which stress develops in the supporting system of the piezoelectric materials, the electromechanical coupling factor (k ij ) of the piezoelectric materials is important for the output power at the resonance frequency. Therefore, soft-piezoelectric materials are good candidates for these PEHs. For type-2 PEHs, in which stress develops in the piezoelectric material and supporting system, the figure of merit (FOM) of the output power at the resonance frequency is (k ij 2 × Q m )/s 11 E , where Q m and s 11 E are the mechanical quality factor and the elastic compliance of piezoelectric materials, respectively. In particular, the effect of Q m is very large for these PEHs, indicating that hard-piezoelectric materials are good candidates for type-2 PEHs operating at the resonance frequency. For both type-1 and type-2 PEHs operating at off-resonance frequency, the k ij 2 × d ij × g ij is the FOM of the output power of the PEHs, where g ij is a piezoelectric voltage constant. Therefore, soft-piezoelectric materials are also good candidates for both type-1 and type-2 PEHs operating at the off-resonance frequency.

AB - For a type-1 piezoelectric energy harvester (PEH), in which stress develops in the supporting system of the piezoelectric materials, the electromechanical coupling factor (k ij ) of the piezoelectric materials is important for the output power at the resonance frequency. Therefore, soft-piezoelectric materials are good candidates for these PEHs. For type-2 PEHs, in which stress develops in the piezoelectric material and supporting system, the figure of merit (FOM) of the output power at the resonance frequency is (k ij 2 × Q m )/s 11 E , where Q m and s 11 E are the mechanical quality factor and the elastic compliance of piezoelectric materials, respectively. In particular, the effect of Q m is very large for these PEHs, indicating that hard-piezoelectric materials are good candidates for type-2 PEHs operating at the resonance frequency. For both type-1 and type-2 PEHs operating at off-resonance frequency, the k ij 2 × d ij × g ij is the FOM of the output power of the PEHs, where g ij is a piezoelectric voltage constant. Therefore, soft-piezoelectric materials are also good candidates for both type-1 and type-2 PEHs operating at the off-resonance frequency.

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SN - 2211-2855

VL - 57

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JO - Nano Energy

JF - Nano Energy

ER -

Determination of the appropriate piezoelectric materials for various types of piezoelectric energy harvesters with high output power

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

UN SDGs

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