Semi-transparent Skin Electrodes Based on Conductive Microfiber Mesh and Ion Gel Composite

Abstract

As the human-machine interface becomes more important, skin electrodes that measure biological signals and stimulate electrical signals are attracting attention. However, many electrodes currently being studied are opaque and difficult to use in everyday life. Therefore, we intend to manufacture semi-transparent skin electrodes that can be used in daily life using conductive microfiber mesh and ion gel composite. The conductive microfiber mesh used for the skin electrode has higher ion permeability and transparency compared to the film, and it is used with ion gel to protect it from external impact and make it attachable to the skin. The resistance and capacitance of the conductive microfiber mesh and the resistance of the ion gel composite have sufficient values to be used as skin electrodes, and the transmittance in the visible light region is more than 60 %T. The fabricated skin electrode can measure bio-signal detection such as electromyography or electrocardiogram, and showed similar performance when comparing the signal-to-noise ratio with commercial skin electrodes.