Characteristics of electroactive polymer actuators using graphene electrodes

Im, Ki Hong; Suh, Yong-Suk; Choi, Hong‐Seok

doi:10.1007/s00542-016-2905-4

Cited by 1 publication

(1 citation statement)

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“…A com prehensive review on the studies of compliant electrodes has been given by Samuel Rosset et al, where carbonbased elec trodes, metallic thinfilm electrodes and novel techniques for compliant electrodes, which includes implantation of metallic nanoclusters, photopatternable electrodes, selfclearing elec trodes, and transparent electrodes were investigated [15]. Recently, graphene was also used as material of a stretchable electrode [16,17]. On the other hand, an indirect possibility to reduce the influence of compliant electrodes on the achievable actuation stroke is to avoid that the electrodes are stretched during actuation.…”

Section: Journal Of Micromechanics and Microengineeringmentioning

confidence: 99%

Semi-rigid ring-shaped electrode dielectric electroactive polymer membrane as buckling actuator

Zhu

Wallrabe

Woias

et al. 2019

J. Micromech. Microeng.

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We propose a semirigid ringshaped electrode layout for an outofplane buckling actuator using a dielectric electroactive polymer (DEAP) membrane. The electrodes are patterned around the deflectable membrane as a ring, rather than the usual compliant electrodes covering the whole membrane. One electrode is defined on the rigid substrate and the counter electrode on the flexible polymer. The buckling actuation is a result of the shear forces provided by the DEAP membrane between the ringshaped electrodes. Comparing the results for different membrane thicknesses, shapes and electrode widths, we find that membranes accumulate compression strain without obvious deflection at low electric fields and then start deflecting linearly with electric field above a threshold of about 70 V µm −1 . Furthermore, only a small effective region of the electrode area, approximately four times the membrane thickness contributes to the deflection. In the paper, we derive an analytical expression for the deflection and compare the simulation to experimental data.

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Section: Journal Of Micromechanics and Microengineeringmentioning

confidence: 99%