Issue 40, 2018, Issue in Progress

3D-printed origami electronics using percolative conductors


Recently, three-dimensional (3D) printing has garnered tremendous amounts of attention in various applications. In this study, we suggest a facile means of creating 3D-printed foldable electrodes on paper via the direct printing of composite pastes consisting of conductive fillers and a thermoplastic elastomer. The 3D-printability of the prepared composite pastes is investigated depending on the rheological properties. It is revealed that the composite paste with a high storage modulus would enable the formation of highly conductive features with a resistance of 0.4 Ω cm−1 on three-dimensional paper structures. The mechanical bending/folding stability levels of the printed electrodes are evaluated to judge the possibility of realizing 3D-printed origami electronics. The resistance is changed slightly with a normalized resistance value of 2.3, when the printed electrodes are folded with a folding angle of 150°. It is demonstrated that the 3D-printed composite electrodes are applicable to various origami electronics, including electrical circuits, strain sensors and electrochemical sensors.

Graphical abstract: 3D-printed origami electronics using percolative conductors

Supplementary files

Article information

Article type
14 May 2018
11 Jun 2018
First published
20 Jun 2018
This article is Open Access
Creative Commons BY license

RSC Adv., 2018,8, 22755-22762

3D-printed origami electronics using percolative conductors

Y. Jo, D. W. Jeong, J. Lee, Y. Choi and S. Jeong, RSC Adv., 2018, 8, 22755 DOI: 10.1039/C8RA04082F

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