Junction engineering in solution-processed nanosheet networks

Abstract The performance of solution-processed 2D material networks is typically limited by intersheet junctions, which disrupt charge transport and prevent intrinsic nanosheet properties from scaling. Advances in processing and characterisation now allow direct junction engineering to tune the interlayer transport mechanisms. This Perspective reviews the current understanding of junctions, techniques for measuring their properties, and discusses engineering strategies for their tuning, aiming to unlock scalable fabrication of high-performance devices that mirror intrinsic 2D material properties.