300‐nm Imperceptible, Ultraflexible, and Biocompatible e‐Skin Fit with Tactile Sensors and Organic Transistors

A sub-300-nm, including the substrate and encapsulation layers, e-skin fit with touch sensors and organic transistors is created, which weights ≈0.7 g m−2. The e-skin can be repeatedly bent to radii less than 2 μm and accommodate repeated stretching on a prestrained elastomer, while retaining its good electrical characteristics. Its biocompatibility is demonstrated by depositing it on a human skin without any noticeable irritability.