Chemically‐Linked Heterostructures of Palladium Nanosheets and 2H‐MoS 2

in the infrared, up to 1700 nm. In comparison, a van der Waals heterostructure with the same components shows poorer photoresponse. The results prove that the covalent linkage of metal nanostructures to 2D materials is a promising approach to build mixed-dimensional heterostructures.