Tiny graphene wrinkles enable ultra-thin electronics

The study focused on uncovering how tiny, sharp wrinkles in graphene material lead to radical changes in its electrical properties. When these wrinkles form at the nanometric scale, they displace electrons within the material, creating two opposite electrical poles. This results in a strong charge separation and a static electric charge that appears when a small voltage—around one volt—is applied. The findings showed that the sharpness of the bending has a greater impact than the size of the wrinkle itself, and that the polarization effect caused by these wrinkles is millions of times stronger than that observed in larger systems. This discovery opens new possibilities for controlling the design of electronic devices by reshaping materials at the atomic level instead of through chemical modifications. It paves the way for the development of thinner and more precise electronics.

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