One-volt-driven superfast polymer actuators based on single-ion conductor
SCIE
SCOPUS
- Title
- One-volt-driven superfast polymer actuators based on single-ion conductor
- Authors
- Onnuri Kim; Hoon Kim; Choi, UH; Park, MJ
- Date Issued
- 2016-11-18
- Publisher
- Nature Publishing Group
- Abstract
- The key challenges in the advancement of actuator technologies related to artificial muscles include fast-response time, low operation voltages and durability. Although several researchers have tackled these challenges over the last few decades, no breakthrough has been made. Here we describe a platform for the development of soft actuators that moves a few millimetres under 1V in air, with a superfast response time of tens of milliseconds. An essential component of this actuator is the single-ion-conducting polymers that contain well-defined ionic domains through the introduction of zwitterions; this achieved an exceptionally high dielectric constant of 76 and a 300-fold enhancement in ionic conductivity. Moreover, the actuator demonstrated long-term durability, with negligible changes in the actuator stroke over 20,000 cycles in air. Owing to its low-power consumption (only 4 mW), we believe that this actuator could pave the way for cutting-edge biomimetic technologies in the future.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/36670
- DOI
- 10.1038/NCOMMS13576
- ISSN
- 2041-1723
- Article Type
- Article
- Citation
- Nature Communications, vol. 7, 2016-11-18
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