Gul Osman, Song Myoung, Gu Chang-Yeon, Ahn Jihyeon, Lee Kichul, Ahn Junseong, Kim Hye Jin, Kim Taek-Soo, Park Inkyu
Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology (KAIST), Yuseong-gu, Daejeon, Republic of Korea.
Intelligent Components and Sensors Research Section, Electronics and Telecommunication Research Institute (ETRI), Yuseong-gu, Daejeon, Republic of Korea.
Nat Commun. 2025 Feb 4;16(1):1337. doi: 10.1038/s41467-025-56502-9.
The seamless integration of rigid/flexible electronic components into stretchable substrates is imperative for the realization of reliable stretchable electronics. However, the transition from flexible-to-stretchable substrates presents inherent challenges in interfacial behavior, predominantly arising from disparities in elastic moduli, thereby rendering their integration arduous for practical deployment. Here, we introduce a bioinspired interface-engineered flexible island (BIEFI), which effectively facilitates the creation of highly stretchable electronics by optimizing the interface with flexible mechanical interlocking mechanisms, resilient to physical deformations. Various electronic components, such as light-emitting diodes (LEDs) and solar cells, are affixed onto the flexible island, showcasing its versatility as a robust platform for rigid components while ensuring the entire substrate maintains high stretchability. Additionally, a smart workout monitoring system is demonstrated by integrating a resistance band with a flexible-to-stretchable platform. This approach seamlessly integrates a wide range of rigid, flexible, and stretchable components, ensuring durability under diverse physical deformations.
将刚性/柔性电子元件无缝集成到可拉伸基板中对于实现可靠的可拉伸电子产品至关重要。然而，从柔性基板到可拉伸基板的转变在界面行为方面存在固有挑战，主要源于弹性模量的差异，从而使其集成难以实际应用。在此，我们引入了一种受生物启发的界面工程柔性岛（BIEFI），它通过利用柔性机械互锁机制优化界面，有效地促进了高可拉伸电子产品的创建，对物理变形具有弹性。各种电子元件，如发光二极管（LED）和太阳能电池，被固定在柔性岛上，展示了其作为刚性元件的强大平台的多功能性，同时确保整个基板保持高拉伸性。此外，通过将电阻带与柔性到可拉伸平台集成，展示了一个智能健身监测系统。这种方法无缝集成了广泛的刚性、柔性和可拉伸元件，确保在各种物理变形下的耐久性。
