TY - JOUR
T1 - Asymmetric elastoplasticity of stacked graphene assembly actualizes programmable untethered soft robotics
AU - Wang, Shuai
AU - Gao, Yang
AU - Wei, Anran
AU - Xiao, Peng
AU - Liang, Yun
AU - Lu, Wei
AU - Chen, Chinyin
AU - Zhang, Chi
AU - Yang, Guilin
AU - Yao, Haimin
AU - Chen, Tao
N1 - Funding Information:
This work was supported by the Natural Science Foundation of China (51803226, 51573203, and 11772283), the Bureau of International Cooperation of Chinese Academy of Sciences (174433KYSB20170061), Key Research Program of Frontier Science, Chinese Academy of Sciences (QYZDB-SSW-SLH036), NSFC-Zhejiang Joint Fund for the Integration of Industrialization and Informatization (U1909215), Postdoctoral Innovation Talent Support Program (BX20180321), China Postdoctoral Science Foundation (2018M630695), General Research Fund (PolyU 152064/15E, PolyU 5293/13E) from Hong Kong RGC, and Ningbo Scientific and Technological Innovation 2025 Major Project (2018B10057).
Publisher Copyright:
© 2020, The Author(s).
PY - 2020/12/1
Y1 - 2020/12/1
N2 - There is ever-increasing interest yet grand challenge in developing programmable untethered soft robotics. Here we address this challenge by applying the asymmetric elastoplasticity of stacked graphene assembly (SGA) under tension and compression. We transfer the SGA onto a polyethylene (PE) film, the resulting SGA/PE bilayer exhibits swift morphing behavior in response to the variation of the surrounding temperature. With the applications of patterned SGA and/or localized tempering pretreatment, the initial configurations of such thermal-induced morphing systems can also be programmed as needed, resulting in diverse actuation systems with sophisticated three-dimensional structures. More importantly, unlike the normal bilayer actuators, our SGA/PE bilayer, after a constrained tempering process, will spontaneously curl into a roll, which can achieve rolling locomotion under infrared lighting, yielding an untethered light-driven motor. The asymmetric elastoplasticity of SGA endows the SGA-based bi-materials with great application promise in developing untethered soft robotics with high configurational programmability.
AB - There is ever-increasing interest yet grand challenge in developing programmable untethered soft robotics. Here we address this challenge by applying the asymmetric elastoplasticity of stacked graphene assembly (SGA) under tension and compression. We transfer the SGA onto a polyethylene (PE) film, the resulting SGA/PE bilayer exhibits swift morphing behavior in response to the variation of the surrounding temperature. With the applications of patterned SGA and/or localized tempering pretreatment, the initial configurations of such thermal-induced morphing systems can also be programmed as needed, resulting in diverse actuation systems with sophisticated three-dimensional structures. More importantly, unlike the normal bilayer actuators, our SGA/PE bilayer, after a constrained tempering process, will spontaneously curl into a roll, which can achieve rolling locomotion under infrared lighting, yielding an untethered light-driven motor. The asymmetric elastoplasticity of SGA endows the SGA-based bi-materials with great application promise in developing untethered soft robotics with high configurational programmability.
UR - http://www.scopus.com/inward/record.url?scp=85089969270&partnerID=8YFLogxK
U2 - 10.1038/s41467-020-18214-0
DO - 10.1038/s41467-020-18214-0
M3 - Journal article
C2 - 32868779
AN - SCOPUS:85089969270
SN - 2041-1723
VL - 11
JO - Nature Communications
JF - Nature Communications
IS - 1
M1 - 4359
ER -