| 초록 |
Electro-active actuators have been extensively studied for biomimetic technologies. Key issues in advancing the technologies can be placed on the achievement of fast response time, low driving voltage, and durable operation in air. In this study, we have developed a new actuator based on nanostructured block copolymers integrated with ionic liquids (ILs). It has been demonstrated that the existence of nanoscale ionic channels within the polymer layers leads to significant improvements such as fast switching time and enhanced performance under sub-1V operation condition. The obtained actuator performance surpasses that of the state-of-the-art actuators, attributed to the creation of efficient ion conduction pathway. In-situ SAXS experiments were carried out to underpin the actuation mechanism and the key to success stemmed from the evolution of the nanostructure of the electrolyte layer with dimensional gradients beneath the cathode during actuation, which promoted the bending motion. |
