Journal
NPG ASIA MATERIALS
Volume 10, Issue -, Pages 821-826Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/s41427-018-0077-7
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Funding
- National Natural Science Foundation of China [51773165, 11772249]
- Fundamental Research Funds for the Central Universities [xjj2015119]
- Science Technology Innovation Commission of Shenzhen Municipality [JCYJ 20170817171930009]
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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.
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