Enhancing Electrical Outputs of Piezoelectric Nanogenerators by Controlling the Dielectric Constant of ZnO/PDMS Composite

被引：13

作者：

Amangeldinova, Yerkezhan ^{[1
,2
]}

Aben, Dimaral ^{[1
,2
]}

Ma, Xiaoting ^{[3
]}

Ahn, Heesang ^{[4
]}

Kim, Kyujung ^{[4
]}

Shin, Dong-Myeong ^{[3
]}

Hwang, Yoon-Hwae ^{[1
,2
]}

机构：

[1] Pusan Natl Univ, Dept Nano Energy Engn, Busan 46241, South Korea

[2] Pusan Natl Univ, BK 21 PLUS Nanoconvergence Technol Div, Busan 46241, South Korea

[3] Univ Hong Kong, Dept Mech Engn, Pokfulam, Hong Kong 999077, Peoples R China

[4] Pusan Natl Univ, Dept Opt & Mech Engn, Busan 46241, South Korea

来源：

MICROMACHINES | 2021年 / 12卷 / 06期

基金：

新加坡国家研究基金会;

关键词：

nanogenerator; piezoelectricity; dielectric constant; ZnO; ENERGY-CONVERSION; ZNO; LAYER;

D O I：

10.3390/mi12060630

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Structural optimizations of the piezoelectric layer in nanogenerators have been predicted to enhance the output performance in terms of the figure of merit. Here, we report the effect of dielectric constant on electrical outputs of piezoelectric nanogenerator using ZnO/PDMS composites with varied ZnO coverages. The dielectric constant of piezoelectric layers was adjusted from 3.37 to 6.75. The electrical output voltage of 9 mV was achieved in the nanogenerator containing the ZnO/PDMS composite with the dielectric constant of 3.46, which is an 11.3-fold enhancement compared to the value of the nanogenerator featuring the composite with high dielectric constants. Significantly, lowering the dielectric constant of the piezoelectric layer improves the electrical output performance of piezoelectric nanogenerators.

引用

页数：8

共 26 条

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