期刊
CARBON
卷 187, 期 -, 页码 97-107出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.carbon.2021.10.071
关键词
Liquid crystal elastomer; Carbon nanotubes; Light-driven; Fiber; Phototropic locomotion
资金
- National Natural Science Fund of China (NSFC) [21875160, 12072225]
This paper introduces a new type of core-shell CNTs@LCE fiber soft actuator with excellent photothermal conversion capacity and thermal-contraction characteristic. The actuator can be controlled by near-infrared light and exhibits outstanding phototropic bending, acting as artificial muscle for various applications. The unique photo-driven phototropic movement mechanism of the core-shell CNTs@LCE fiber is expected to guide the development of other soft smart fiber actuators for advanced applications.
Soft actuators controlled by untethered methods have aroused growing attention on account of their flexibility and controllability. Soft actuators shaped in a one-dimensional structure are highly desired in diverse practical applications. In this paper, we fabricate a new core-shell CNTs@LCE fiber soft actuator made of a liquid crystal elastomer (LCE) fiber coating with carbon nanotubes (CNTs) shell. Thanks to the outstanding photothermal conversion capacity of CNTs and remarkable thermal-contraction characteristic of LCE, the obtained core-shell CNTs@LCE fiber actuator can be controlled by near-infrared light with excellent phototropic bending to arbitrary directions, lifting loads more than 4600 times of its own weight and acting as artificial muscle to control the feature of biomimetic elbow and gripper with loads. More intriguingly, the core-shell CNTs@LCE fiber can fulfill unprecedented photo-driven phototropic locomotion including tracking the moving light source, climbing a slanted surface, and optically steering as well. The involved unique photo-driven phototropic movement mechanism has been revealed experimentally and theoretically, which is highly expected to guide the fabrication of other soft smart fiber actuators for advanced applications. (c) 2021 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据