For Layered 2D Materials, Robotics Produces Cleaner Interfaces Between Stacked Sheets

(Funded by the U.S. Department of Energy)
Researchers from New York University; the Center for Functional Nanomaterials (CFN), a U.S. Department of Energy Office of Science user facility at Brookhaven National Laboratory; and the National Institute for Materials Science in Tsukuba, Japan, have used a special robotic system to assemble very large pieces of atomically clean two-dimensional materials into stacks. These materials, called graphene heterostructures, consist of sheets just a few atoms thick, have record-setting dimensions โ€“ as large as 7.5 square millimeters, which is very large in the world of microelectronics. The robotic assembly tool helped the scientists discover a new interface cleaning mechanism that combines mechanical and thermal forces. Overall, this study opens a new opportunity to develop a more effective process to make large and clean layered heterostructure devices.

https://www.energy.gov/science/bes/articles/layered-2d-materials-robotics-produces-cleaner-interfaces-between-stacked