Flexible 2D-2D composite film for magnetoelectric sensing

Nanocomposites have long been celebrated for surpassing the intrinsic limitations of polymers.They achieve dramatic improvements in mechanical, electrical, thermal, and optical properties, even with low filler loadings.The key to these enhancements lies in dimensionality (denoted as D).As Osami Kamigaito defined in 1994, when one or more dimensions of a filler are confined below 100 nm, the resulting composite exhibits properties vastly different from those of either constituent.1 Decades of research have shown that 0D nanoparticles, 1D nanowires, and 2D nanosheets each offer distinct advantages.Among these, 2D fillers stand out for their exceptional surface area, atomic-scale thickness (Figure 1A), and ability to form strong interfacial interactions, enabling performance gains that bulk or microscale fillers cannot match.