Dielectric gels with ultra-high dielectric constant, low elastic modulus, and excellent transparency

被引：76

作者：

Shi, Lei ^{[1
]}

Yang, Ruisen ^{[2
]}

Lu, Shiyao ^{[1
]}

Jia, Kun ^{[2
]}

Xiao, Chunhui ^{[1
]}

Lu, Tongqing ^{[2
]}

Wang, Tiejun ^{[2
]}

Wei, Wei ^{[1
]}

Tan, Hui ^{[3
]}

Ding, Shujiang ^{[1
]}

机构：

[1] Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, MOE Key Lab Nonequilibrium Synth & Modulat Conden, Dept Appl Chem,Sch Sci, Xian 710049, Shaanxi, Peoples R China

[2] Xi An Jiao Tong Univ, Sch Aerosp Engn, State Key Lab Strength & Vibrat Mech Struct, Xian 710049, Shaanxi, Peoples R China

[3] Shenzhen Univ, Hlth Sci Ctr, Affiliated Hosp 1, Shenzhen 518028, Peoples R China

来源：

NPG ASIA MATERIALS | 2018年 / 10卷

基金：

中国国家自然科学基金;

关键词：

POLY(VINYLIDENE FLUORIDE); ENERGY DENSITY; ELASTOMERS; POLYMER; COMPOSITES; ELECTROSTRICTION; NANOPARTICLES; PERFORMANCE; BLENDS; SPEED;

D O I：

10.1038/s41427-018-0077-7

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We designed dielectric gels, a new type of polymer-based dielectric material. By using solvents with high dielectric constants, the gels achieve a unique combination of ultra-high dielectric constant, low elastic modulus, and excellent transparency, which are extremely challenging or impossible to realize with traditional polymer dielectrics. The gels exhibit high stretchability (stretch of approximately 10) and low mechanical hysteresis. We demonstrated the use of the dielectric gels by fabricating a bioinspired tunable lens, the focal length of which can be adjusted by varying the applied voltage. We believe that the dielectric gels, as a new type of polymer dielectric, offer new opportunities for soft robotics, sensors, electronics, optics, and biomimetics.

引用

页码：821 / 826

页数：6

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