Stretchable organic transistors for bioinspired electronics: Materials, devices and applications

Abstract With the rapid development of human‐computer interaction and Internet of Things technologies, bioinspired electronics have attracted significant attention due to their excellent compatibility, portability and mechanical flexibility. Over the past few decades, advancements in stretchable organic semiconductor materials and devices have established stretchable organic transistors as versatile platforms for bioinspired electronic systems, owing to their exceptional mechanical stretchability, high biocompatibility, and tunable optoelectronic properties. These devices, with their multifunctionality to simultaneously process and store information, effectively circumvent the von Neumann bottleneck, thereby driving the development of next‐generation bionic intelligence, artificial sensory systems, and neuroprosthetics. In this review, we first provide a comprehensive overview of recent advances in design strategies for stretchable organic transistors, encompassing design of intrinsically stretchable materials and structural engineering approaches. Next, we summarize their applications in bioinspired electronics, particularly in neuromorphic devices and skin‐like sensors. Finally, we discuss the prospects and challenges of stretchable organic transistor‐based bioinspired electronics, ranging from the design of intrinsically stretchable organic materials to their practical implementation, thereby laying a solid foundation for next‐generation prosthetic skins, human‐machine interfaces, and neurorobotics.