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One-volt-driven superfast polymer actuators based on single-ion conductors

Author

Listed:
  • Onnuri Kim

    (Pohang University of Science and Technology (POSTECH))

  • Hoon Kim

    (Pohang University of Science and Technology (POSTECH))

  • U. Hyeok Choi

    (Korea Institute of Materials Science
    Pukyong National University)

  • Moon Jeong Park

    (Pohang University of Science and Technology (POSTECH))

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 1 V 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.

Suggested Citation

  • Onnuri Kim & Hoon Kim & U. Hyeok Choi & Moon Jeong Park, 2016. "One-volt-driven superfast polymer actuators based on single-ion conductors," Nature Communications, Nature, vol. 7(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:7:y:2016:i:1:d:10.1038_ncomms13576
    DOI: 10.1038/ncomms13576
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    Cited by:

    1. Van Hiep Nguyen & Saewoong Oh & Manmatha Mahato & Rassoul Tabassian & Hyunjoon Yoo & Seong-Gyu Lee & Mousumi Garai & Kwang Jin Kim & Il-Kwon Oh, 2024. "Functionally antagonistic polyelectrolyte for electro-ionic soft actuator," Nature Communications, Nature, vol. 15(1), pages 1-10, December.

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