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^*

^*Corresponding author for this work

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

46 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

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

FOM
PEH
Piezoelectric materials
Q
k

ASJC Scopus subject areas

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

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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.",

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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",

month = mar,

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

language = "English",

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pages = "581--591",

journal = "Nano Energy",

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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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KW - k

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AN - SCOPUS:85059540287

SN - 2211-2855

VL - 57

SP - 581

EP - 591

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

UN SDGs

Keywords

ASJC Scopus subject areas

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