Rapidly responsive liquid metal/polyimide photothermal actuators designed based on the bilayer structure difference in coefficient of thermal expansion
Xiaofei Li, Xin Ding, Yuhang Du, Chao Xiao, Yanyan Wang, Kang Zheng, Xianglan Liu, Lin Chen, Xingyou Tian, Xian Zhang
Abstract
A photoactuator heats up locally and bends rapidly under a NIR laser, which can be used for light-controlled switch and bionics, such as imitating the creeping of caterpillars, the lifting of arms, and the swimming of fish.
Topics & Concepts
Materials sciencePolyimideThermal expansionBionicsBilayerActuatorPhotothermal therapyPhotothermal effectLaserThermalComposite materialMetalNanotechnologyLayer (electronics)OpticsThermodynamicsMetallurgyMembraneComputer scienceGeneticsElectrical engineeringPhysicsBiologyEngineeringArtificial intelligenceAdvanced Materials and MechanicsAdvanced Sensor and Energy Harvesting MaterialsSurface Modification and Superhydrophobicity