Programmable Soft Materials and Their Applications
발표 구분
초청강연
제목
Continuous and programmable photomechanical jumping by using topological transitions of liquid crystalline polymeric film
발표자
()
초록
내용
In this study, we demonstrate a photomechanical jumping soft robot capable of continuous and programmable jumping motions without external intervention through on-demand patterning and bidirectional actuation-light irradiation. A soft robot with bistable 3D monoclastic structures is formed by inscribed 270° super-twisted nematic liquid crystal molecular geometry, and it effectively accumulates and instantaneously releases photo-generated energy during the topological transition between the two monoclastic structures to realize a high-performance jumping motion. The implemented soft robot has excellent jumping motility (15.5 BL and 880 BL/s for jumping height and take-off velocity, respectively) among lightweight jumping robots, and can stably overcome large obstacles through the real-time continuous programming. Acknowledgement This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (No 2019R1A2C1005531).