Greatly enhanced breakdown strength and energy density in ultraviolet-irradiated polypropylene

被引：26

作者：

Chen, Jiayu ^{[1
]}

Li, Bao-Wen ^{[1
,2
]}

Sun, Yi ^{[1
]}

Zhang, Pengxiang ^{[2
]}

Shen, Zhonghui ^{[2
]}

Zhang, Xin ^{[2
]}

Nan, Ce-Wen ^{[3
]}

Zhang, Shujun ^{[4
]}

机构：

[1] Wuhan Univ Technol, Sch Mat Sci & Engn, State Key Lab Silicate Mat Architectures, Wuhan 430070, Peoples R China

[2] Wuhan Univ Technol, Ctr Smart Mat & Devices, State Key Lab Adv Technol Mat Synth & Proc, Wuhan, Peoples R China

[3] Tsinghua Univ, Sch Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing, Peoples R China

[4] Univ Wollongong, Australian Inst Innovat Mat, Inst Superconducting & Elect Mat, North Wollongong, NSW 2500, Australia

来源：

IET NANODIELECTRICS | 2021年 / 4卷 / 04期

基金：

中国国家自然科学基金;

关键词：

RELAXOR FERROELECTRIC BEHAVIOR; FILMS;

D O I：

10.1049/nde2.12022

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Polymer dielectrics have drawn great attentions for applications in advanced electronic devices and power grids because of their high breakdown strength, low dielectric loss, and excellent flexibility. However, the low energy density in polymer dielectric capacitors will hinder the continuous miniaturization of electrical systems. In this work, ultraviolet irradiation is demonstrated to greatly enhance the breakdown strength and energy density of polypropylene. Dramatically improved breakdown strength of 867 MV/m and discharged energy density of 8.0 J/cm(3), together with the high energy efficiency of >90%, were simultaneously achieved in polypropylene after ultraviolet irradiation. Our research shows that proper ultraviolet irradiation can effectively improve the energy density of polypropylene without sacrificing its high charge-discharge efficiency, being potential for applications in power electronics and pulse electric systems.

引用

页码：223 / 228

页数：6

共 24 条

[1] Polymer-Based Dielectrics with High Energy Storage Density [J].