Abstract

Foldable components such as electrodes, transistors, and sensors are necessary to realize wearable electronics to be reliable use. In this paper, we propose a printable and foldable electrode using a composite ink of carbon nanotubes and polymer. Relative resistance change corresponding to the foldability by folding the electrode up to 1000 times is relatively small ∼9.9 and ∼1.7% for the folding directions of tensile and compressive stress in the electrodes, respectively. As a proof-of-concepts, a foldable calculator is demonstrated without malfunction. This electrode may lead to develop foldable electronics furthermore and can be applied to a wide range of applications. Printable, foldable carbon nanotube-based electrode and its application of a foldable calculator.

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