LAUSR

Abstract Triboelectric electronic skin has attracted increasing attention in recent years by virtue of the self-powered feature. Complex and harsh technologies are extensively used to create high specific surface area to improve the sensitivity of tactile sensing. The fabrication of hierarchical micro or nano structures with efficient and facile strategy remains a tough task. Besides, rarely any progress has been reported to consider the problem of bacterial growth for long time contact of the electronic skin with the human body. Here we report a flexible, transparent, and antibacterial triboelectric electronic skin for sensitive tactile sensing. Inspired by the microstructure of rose petal, a special “replication” method is developed to prepare the sensing layer with uniform and hierarchical nano-in-micro structure, avoiding the diversity and heterogeneity of the rose petal structure. When combined with a fiber-based conductive network and an antibacterial substrate, this highly shape adaptive electronic skin can be attached conformably on any curved surface and allow the functions of distance resolution, multi-tactile sensing, and trajectory recognition in real-time. The work presents a significant advance towards multifunctional electronic skin with excellent practicability.