期刊
NANO ENERGY
卷 68, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.nanoen.2019.104302
关键词
Yin-Yang complementarity; Dual-responsive; Actuators; Bi-directional walking robot; Smart claw array
类别
资金
- National Key Research and Development Program of China
- National Natural Science Foundation of China (NSFC) [2017YFB1104300, 61935008, 61590930, 61775078, 61905087]
- Scientific and Technological Developing Scheme of Jilin Province [20180101061JC]
Multi-responsive soft actuators that can convert environmental energies to mechanical works are promising for robotics. However, it currently lacks universal and effective concepts to develop dual-responsive bimorph actuators. In this paper, the concept of Yin-Yang complementarity, a classical theory in the history of Chinese philosophy, has been adopted for designing dual-responsive actuators. The complement of Yin and Yang means the bilayers can be inter-constraint as well as being complementary in a dual-responsive actuation. As a proof-of-concept, a composite layer of nano-size graphite (Nano-G) and polyvinylidene fluoride (PVDF) has been combined with graphene oxide (GO), forming a bilayer structure. In response to moisture, GO is positive, meaning Yang, whereas Nano-G@PVDF is negative, meaning Yin. On the contrary, under light irradiation, GO is negative; whereas the photothermal Nano-G@PVDF layer is positive. We demonstrated a bi-directional walking robot and a smart claw array for controllable moisture/light manipulation. The Yin-Yang complementarity strategy provides a universal concept for developing multi-responsive bimorph actuators.
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