Pb52(Zr,Ti)48O3 ferroelectric dipole electret exploiting surface pillar array structure for electrostatic vibration energy harvesters

Hung Hoang Nguyen; Haruhiko Asanuma; Hiroyuki Oguchi; Gaёl Sebald; Hiroki Kuwano

doi:10.18494/SAM.2020.2854

Pb₅₂(Zr,Ti)₄₈O₃ ferroelectric dipole electret exploiting surface pillar array structure for electrostatic vibration energy harvesters

Hung Hoang Nguyen, Haruhiko Asanuma, Hiroyuki Oguchi, Gaёl Sebald, Hiroki Kuwano

Department of Applied Chemistry

Research output: Contribution to journal › Article

Abstract

In this paper, we present ferroelectric dipole electrets (FDEs) with patterned Pb₅₂(Zr,Ti)₄₈O₃ (PZT) pillar arrays. Their output power generation capability was higher than that of flat FDEs when used for electrostatic vibration energy harvesters (e-VEHs). This excellent capability was achieved since the patterned pillar structure increased the electric field near the electret surface. The surface potential (V_s) became as high as 1035 V when the surface charge density was 6.9 mC/m². This surface charge density was 1.3-fold higher than that of flat FDEs and sixfold higher than that of conventional CYTOP polymer electrets (CPEs). Consequently, VEHs (20 × 20 × 1 mm³) showed a maximum power of 102 µW at an acceleration of 0.6 g (1 g = 9.8 m/s²) and a frequency of 20 Hz. These results will open a new strategy for the use of FDEs in e-VEHs.

Original language	English
Pages (from-to)	2517-2525
Number of pages	9
Journal	Sensors and Materials
Volume	32
Issue number	7
DOIs	https://doi.org/10.18494/SAM.2020.2854
Publication status	Published - 2020 Jul

Keywords

Electrets
FDE
Ferroelectric dipole electrets
PZT
Vibration energy harvesters

ASJC Scopus subject areas

Instrumentation
Materials Science(all)

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title = "Pb52(Zr,Ti)48O3 ferroelectric dipole electret exploiting surface pillar array structure for electrostatic vibration energy harvesters",

abstract = "In this paper, we present ferroelectric dipole electrets (FDEs) with patterned Pb52(Zr,Ti)48O3 (PZT) pillar arrays. Their output power generation capability was higher than that of flat FDEs when used for electrostatic vibration energy harvesters (e-VEHs). This excellent capability was achieved since the patterned pillar structure increased the electric field near the electret surface. The surface potential (Vs) became as high as 1035 V when the surface charge density was 6.9 mC/m2. This surface charge density was 1.3-fold higher than that of flat FDEs and sixfold higher than that of conventional CYTOP polymer electrets (CPEs). Consequently, VEHs (20 × 20 × 1 mm3) showed a maximum power of 102 µW at an acceleration of 0.6 g (1 g = 9.8 m/s2) and a frequency of 20 Hz. These results will open a new strategy for the use of FDEs in e-VEHs.",

keywords = "Electrets, FDE, Ferroelectric dipole electrets, PZT, Vibration energy harvesters",

author = "Nguyen, {Hung Hoang} and Haruhiko Asanuma and Hiroyuki Oguchi and Gaёl Sebald and Hiroki Kuwano",

year = "2020",

month = jul,

doi = "10.18494/SAM.2020.2854",

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AU - Nguyen, Hung Hoang

AU - Asanuma, Haruhiko

AU - Oguchi, Hiroyuki

AU - Sebald, Gaёl

AU - Kuwano, Hiroki

PY - 2020/7

Y1 - 2020/7

N2 - In this paper, we present ferroelectric dipole electrets (FDEs) with patterned Pb52(Zr,Ti)48O3 (PZT) pillar arrays. Their output power generation capability was higher than that of flat FDEs when used for electrostatic vibration energy harvesters (e-VEHs). This excellent capability was achieved since the patterned pillar structure increased the electric field near the electret surface. The surface potential (Vs) became as high as 1035 V when the surface charge density was 6.9 mC/m2. This surface charge density was 1.3-fold higher than that of flat FDEs and sixfold higher than that of conventional CYTOP polymer electrets (CPEs). Consequently, VEHs (20 × 20 × 1 mm3) showed a maximum power of 102 µW at an acceleration of 0.6 g (1 g = 9.8 m/s2) and a frequency of 20 Hz. These results will open a new strategy for the use of FDEs in e-VEHs.

AB - In this paper, we present ferroelectric dipole electrets (FDEs) with patterned Pb52(Zr,Ti)48O3 (PZT) pillar arrays. Their output power generation capability was higher than that of flat FDEs when used for electrostatic vibration energy harvesters (e-VEHs). This excellent capability was achieved since the patterned pillar structure increased the electric field near the electret surface. The surface potential (Vs) became as high as 1035 V when the surface charge density was 6.9 mC/m2. This surface charge density was 1.3-fold higher than that of flat FDEs and sixfold higher than that of conventional CYTOP polymer electrets (CPEs). Consequently, VEHs (20 × 20 × 1 mm3) showed a maximum power of 102 µW at an acceleration of 0.6 g (1 g = 9.8 m/s2) and a frequency of 20 Hz. These results will open a new strategy for the use of FDEs in e-VEHs.

KW - Electrets

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KW - Ferroelectric dipole electrets

KW - PZT

KW - Vibration energy harvesters

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