A Graphene-Based Bimorph Structure for Design of High Performance Photoactuators.

Hu, Ying; Wu, Guan; Lan, Tian; Zhao, Jingjing; Liu, Yang; Chen, Wei · Adv Mater · 2015

basic_science · Level V

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Abstract

A photoactuator based on a tubular-shaped graphene composite bimorph is fabricated and shows reversible photoactuation with fast response and large deformation (deformation angle of ca. 479° in only 3.6 s), which is mostly attributed to the interfacial thermal stress. Various photoactuator devices based on the tubular bimorph, including a smart box and crawler-type robot that can mimic tank-track motion, are designed.