This technology utilizes ultra-flat gold tape for production of macroscopic 2D materials in high yield and quality for use in electronic, optoelectronic, photonic, and quantum technologies.
Two-dimensional (2D) materials, including graphene and transition metal dichalcogenide monolayers, have a variety of applications in electronics, optics, and quantum information science. 2D materials are often produced using the Scotch tape method, which generates high quality microscopic 2D materials through a simple and inexpensive process. However, the yield is very low and the small flakes associated with Scotch tape exfoliation averts its use in mass production. Therefore, it is beneficial to develop a technique that is equally straightforward but leads to larger monolayers in higher yield.
This technology is a method for producing macroscopic 2D materials that are comparable in quality to the microscopic monolayers formed by conventional Scotch tape exfoliation. The technology utilizes an ultra-flat metal tape that can be used to exfoliate van der Waals single crystals layer-by-layer, disassembling them into monolayers with nearly 100% yield. Using this high-throughput method, monolayer dimensions are limited only by bulk crystal sizes, and resulting 2D materials can be reassembled into macroscopic artificial lattice structures with controllable properties. Potential applications of this technology include the production of macroscopic 2D materials, discovery of new 2D properties, and use of these materials in electronic, optoelectronic, photonic, and quantum technologies.
This technology is currently being used to create new materials for study in multiple Columbia University departments and in two research centers (NSF-MRSEC and DOE-EFRC).
IR CU20156
Licensing Contact: Dovina Qu
