| Journal Title /掲載ジャーナル名 |
npj Flexible Electronics |
| Publication Year and Month /掲載年月 |
May, 2025 |
| Paper Title /論文タイトル |
Stretch-based kirigami structure with folding lines for stretchable electronics |
| DOI /論文DOI |
10.1038/s41528-025-00409-4 |
| Author of Waseda University /本学の著者 |
IWASE, Eiji(Professor, Faculty of Science and Engineering, School of Fundamental Science and Engineering):Last Author |
| Related Websites /関連Web |
– |
| Abstract /抄録 |
We propose a stretch-based kirigami structure with folding lines (referred to as a “kiri-origami” structure) and folding methods of the kiri-origami structure for stretchable electronic devices. The kiri-origami structures have the advantages that rigid electronic elements such as surface mount devices (SMDs) can be mounted and large-number-of-unit structures can be folded up. We achieved the folding-up of the kiri-origami structure using buffer structures and biaxial extension to remove the cause of distortion and effectively utilized tensile force for folding. Undesirable deformations, such as panel warpage and hinge torsion, could not be ignored when using materials and configurations as stretchable electronic substrates and affected the foldability of the kirigami structure. However, our folding method could accurately fold the hinges in this situation. Finally, as a demonstration, we fabricated a kiri-origami LED matrix display with more than 500 hinges. The results indicate that kiri-origami structures are feasible for creating stretchable electronic devices with rigid electronic elements and large-area structures. |
