Atomically Thin Wafers and Superlattices

Manufacturing of paper, which started two thousand years ago, simplified all aspects of information technology: generation, processing, communication, delivery and storage. Similarly powerful changes have been seen in the past century through the development of integrated circuits based on silicon. In this talk, I will first discuss how we can realize these integrated circuits thin and free-standing, just like paper, using two-dimensional materials based on transition metal dichalcogenides and hybrid superlattices. These wafer-scale films and circuits enable novel functionalities previously unavailable; we will discuss two examples including extremely anisotropic thermal conduction for directed heat tranport and delta-waveguides for two dimensional photonics.