High-Throughput Production of 2D Monolayers, Moiré Structures and Their 1D Counterparts

Two dimensional (2D) materials and their artificial structures hold great promises for electronic, optoelectronic, and photonic applications. We developed a few new scalable and controllable top-down processes to construct monolayers, moiré structures, and monolayer nanoribbons directly from a variety of van der Waals (vdW) single crystals, with high yield, high quality, and macroscopic dimensions with millimeter to centimeter scale. High-quality and large-area crystals will allow us to further assemble them into artificial heterostructures, and integrate into multiple photonic devices and pump probe spectroscopic experiments to explore the key static and dynamic properties in these low dimensional systems. Obtaining high quality materials with enhanced yield will take us one step closer to mass production and commercialization of the 2D devices in the future.