Chirophotonic Crystal Actuators for 3D Shape Morphing
발표자
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초록
내용
By using the anisotropic movement coupled with intrinsic optical property, the diverse social signaling directed at conspecifics or camouflage to avoid predation can be found in nature. In this study, the chirophotonic crystal actuator (CCA) is developed by mimicking the natural phenomena for 3D shape morphing such as bending, twisting and folding motion. The CCA is constructed by two dissimilar materials of cholesteric liquid crystal film (CLCF) and polymeric gel thin film (PGTF) exhibiting optically active and mechanically active layers, respectively. The programmed in-planar and out-of-planar heterogeneous structures pave the way to control the directionality of diverse and reversible shape changes. The tendril climbing, eagle hunting, ant lifting, and inchworm moving motions are completely demonstrated. By using the CCA, we also fabricated reusable methanol-laced water identifiers. This work was supported by KIST Institutional Program and Korea Government MSIT (2021R1R1R1004226).