Non-covalent interaction-based molecular electronics with graphene electrodes

Recent years have witnessed the fabrication of various non-covalent interaction-based molecular electronic devices.In the noncovalent interaction-based molecular devices,the strength of the interfacial coupling between molecule and electrode is weakened compared to that of the covalent interaction-based molecular devices,which provides wide applications in fabricating versatile molecular devices.In this review,we start with the methods capable of fabricating graphene-based nanogaps,and the following routes to construct non-covalent interaction-based molecular junctions with graphene electrodes.Then we give an introduction to the reported non-covalent interaction-based molecular devices with graphene electrodes equipped with different electrical functions.Moreover,we summarize the recent progress in the design and fabrication of new-type molecular devices based on graphene and graphene-like two-dimensional(2D)materials.The review ends with a prospect on the challenges and opportunities of non-covalent interaction-based molecular electronics in the near future.