Development and Analysis of Graphene-polymer Composite Flexible Electrode
Keywords:
Flexible electrode, graphene, conductivity, carbon nanotubes, silicone rubberAbstract
Composite flexible electrode made up of a carbon nanotubes (CNTs) added with graphene has a
remarkable potential in overcoming the limitations of a metal-based electrode of higher surface
contact between the skin which creates lower resistance and consistent current flow. In medical
application, the function is as a conductor to convert ionic potential into electronic potentials
through the skin suitable to sense signals for EEG or ECG. However, this electrode still requires
further exploration in terms of design and composition for it to become affordable. Therefore, this
study aims to develop a flexible electrode made of graphene-CNT composite based on selected
design and to analyse the conductivity levels of the electrode with and without cable connections.
Two-probe measurement system was used to measure the conductivity levels of the developed
electrodes containing various composite compositions as well as various cable connection types.
The results showed that 20% CNTs mixture with 2% Graphene was the best conductor with
approximately ±20μA recorded. When SOMK cables with and without copper ring were used,
9.091A current was recorded.
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