Versatile Stretchable Conductor with Exceptional Resilience and Rapid Rebound Capabilities: Toward Sustainable and Damage-Resistant Soft Electronics.
writer：Shanqiu Liu, Yizhen Li, Jun Wen, Zhenxiang Shen, Qiu Meng, Qing Liu, Fan Yang, Si Yu Zheng, Jingg
keywords：electrical sensing, high resilience and rapid rebound, recyclability, selfhealing and reversible adhesion, soft electronics, Stretchable conductors
source：期刊
Issue time：2023年
Stretchable conductors (SCs) have garnered significant attention in bothacademia and industry, owing to their promising applications in flexibleelectronics. However, achieving a highly resilient and rapidly rebounding SCthat enables prompt electrical response to applied strain, while also beingfully recyclable and self-healable, remains a challenge. Here, the design andpreparation of a high-performance SC based on a small bio-molecule (??-Lipoicacid) are reported, using a straightforward, cost-effective, and scalablemethod. The engineered SC exhibits a≈100% rebound ratio and fast reboundspeed (≈0.4 s) under repeated high strains, along with outstanding electricalsensitivity to both deformation and temperature variation. This ensures thatthe SC possesses high precision and real-time sensing attributes. Moreover,the SC features high optical transparency (>97%), robust reversible adhesionto diverse surfaces (up to 5.0 MPa), efficient room-temperature self-healingproperties, and full recyclability. The superior properties of the SC arefundamentally attributed to the installed hierarchical dynamic bonding at themolecular level, which enables continuous energy dissipation and is analyzedthrough DFT calculations. The developed SC holds great potential forapplications in soft electronics and human–machine interfaces