Abstract
Graphene-based materials that can spontaneously response to external stimulations have triggered rapidly increasing research interest for developing smart devices due to their excellent electrical, mechanical and thermal properties. The specific behaviors as bending, curling, and swing are benefit for designing and fabricating the smart actuation system. In this minireview, we overview and summarize some of the recent advancements of stimuli-responsive actuators based on graphene materials. The external stimulus usually is as electrical, electrochemical, humid, photonic, and thermal. The advancement and industrialization of graphene preparation technology would push forward the rapid progress of graphene-based actuators and broaden their application including smart sensors, robots, artificial muscles, intelligent switch, and so on.
Highlights
Artificial actuators are stimuli-sensitive devices that can undergo a reversible change in shape, volume, modulus, or some other mechanical properties in response to various external stimuli, which have attracted tremendous attentions attribute to the wide applications for robots, intelligent switch, smart sensors, memory chips, and prosthetic devices (Kim and Lieber, 1999; Jang et al, 2008; Huang et al, 2012; Xue et al, 2015; Xu et al, 2018b)
We summarize the recent developments of graphene-based actuation systems and the discuss the application of graphene-based actuators under various external stimuli like electrical, electrochemical, humid, light, and other stimulations (Figure 1)
An optically driven actuators based on graphene materials can be used as a device with possibilities of wireless actuation, remote displacement controls and robotic motions (Zhao et al, 2013)
Summary
Artificial actuators are stimuli-sensitive devices that can undergo a reversible change in shape, volume, modulus, or some other mechanical properties in response to various external stimuli, which have attracted tremendous attentions attribute to the wide applications for robots, intelligent switch, smart sensors, memory chips, and prosthetic devices (Kim and Lieber, 1999; Jang et al, 2008; Huang et al, 2012; Xue et al, 2015; Xu et al, 2018b). Peng group reported the mechanically actuating fibers by carbon nanotube displaying a rapid response for using as the smart window and louvers (He et al, 2015). Graphene, as another carbon nanomaterial with just one atom layer thick, that features high electron conductivity, excellent mechanical flexibility, huge surface area, superior thermal conductivity and stability, has captured a broad research interest for using as material or structural component in the actuator fabrication We summarize the recent developments of graphene-based actuation systems and the discuss the application of graphene-based actuators under various external stimuli like electrical, electrochemical, humid, light, and other stimulations (Figure 1)
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