A new method to produce large, monolayer single-crystal-like graphene films more than a foot long relies on harnessing a “survival of the fittest” competition among crystals. The technique, developed by a team led by the Department of Energy’s Oak Ridge National Laboratory (ORNL), may open new opportunities for growing the high-quality two-dimensional materials necessary for long-awaited practical applications.   Making thin layers of graphene and other 2D materials on a scale required for res...