Graphene Actuators: Quantum-Mechanical and Electrostatic Double-Layer Effects

2011 ◽  
Vol 133 (28) ◽  
pp. 10858-10863 ◽  
Author(s):  
Geoffrey W. Rogers ◽  
Jefferson Z. Liu
Keyword(s):  
Double Layer ◽  
Quantum Mechanical ◽  
Electrostatic Double Layer

Graphene Electromechanical Actuation; Origins, Optimization and Applications

2012 ◽  
Vol 1407 ◽  
Author(s):  
Geoffrey W. Rogers ◽  
Jefferson Z. Liu
Keyword(s):  
Graphene Oxide ◽  
Double Layer ◽  
High Performance ◽  
Monolayer Graphene ◽  
Quantum Mechanical ◽  
Electrostatic Double Layer ◽  
Electromechanical Actuation

ABSTRACTGraphene-based materials have emerged as exceptional candidates for the development of novel, high performance actuators. Developing such an actuation material requires an in depth knowledge of the physics of operation and, therefrom, how to best optimize its performance. We investigate the electromechanical actuation of pristine monolayer graphene to elucidate the origin of this material’s exceptional electromechanical actuation performance. It is shown that the electrostatic double-layer (EDL) effect is dominant compared to the quantum-mechanical (QM) effect upon charging and electrolyte immersion. Seeking to optimize the QM actuation performance, we preliminarily investigate graphene oxide (GO) as a potential graphene-based actuation material, and find that it exhibits both unique and high performance responses. Having demonstrated huge stresses (~100 GPa) and high strains (~0.4%), graphene-based materials are uniquely positioned to address future industrial actuation challenges.

Mesoscopic behaviour of multi-layered graphene: the meaning of supercapacitance revisited

2017 ◽  
Vol 19 (9) ◽  
pp. 6792-6806 ◽  
Author(s):  
Fabiana A. Gutierrez ◽  
Flavio C. Bedatty Fernandes ◽  
Gustavo A. Rivas ◽  
Paulo R. Bueno
Keyword(s):  
Double Layer ◽  
Quantum Mechanical ◽  
Electrochemical Capacitance ◽  
General Quantum ◽  
Mechanical Approach ◽  
Quantum Mechanical Approach

The double layer capacitive phenomena is just a particular case of a more general quantum mechanical approach, wherein the electrochemical capacitance is central hence governing the super-capacitance phenomenology in general.

Light-Modulated Electrostatic Double Layer Adhesion

1973 ◽  
Vol 5 (4) ◽  
pp. 269-277 ◽  
Author(s):  
H. Krupp ◽  
W. Schnabel
Keyword(s):  
Double Layer ◽  
Electrostatic Double Layer

scholarly journals Electrostatic double-layer interaction between stacked charged bilayers

2017 ◽  
Vol 96 (4) ◽  
Author(s):  
Mafumi Hishida ◽  
Yoko Nomura ◽  
Ryo Akiyama ◽  
Yasuhisa Yamamura ◽  
Kazuya Saito
Keyword(s):  
Double Layer ◽  
Layer Interaction ◽  
Electrostatic Double Layer
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