Electromechanical actuator with controllable motion, fast response rate, and high-frequency resonance based on graphene and polydiacetylene
Liang Jia-Jie
Huang Lu
Li Na
Huang Yi
Wu Yingpeng
Fang S.
Oh Jiyoung
Kozlov Mikhail
Ma Yanfeng
Li Fei-Fei
Baughman Ray H.
Chen Yongsheng
· 2012
期刊名称:
ACS Nano
2012 年
6 卷
5 期
摘要:
Althoughwidely investigated, novel electromechanical actuators with high overall actuation performance are still in urgent need for various practical and scientific applications, such as robots, prosthetic devices, sensor switches, and sonar projectors. In this work, combining the properties of unique environmental perturbations-actuated deformational isomerization of polydiacetylene (PDA) and the outstanding intrinsic features of graphene together for the first time, we design and fabricate an electromechanical bimorph actuator composed of a layer of PDA crystal and a layer of flexible graphene paper through a simple yet versatile solution approach. Under low applied direct current (dc), the graphene-PDA bimorph actuator with strong mechanical strength can generate large actuation motion (curvature is about 0.37 cm