Condensed Matter Seminar - "More Magic with 2D Crystals"

Two dimensional (2D) electron transport has been one of the most important topics in science and technology for decades. It was originally studied in 3D semiconductors and then continued in 2D van der Waals (vdW) crystals. In this talk, I will start with the large-scale processes for generating 2D crystalline semiconductor films and superlattices that could be used to fabricate atomically thin integrated circuits. Then we will discuss how we use these 2D materials to realize non-electronic, “magical” 2D transport phenomena, observed from phonons, photons, and mass. These new approaches could empower the development of 2D phononics, 2D photonics, and 2D mechanics. In the final portion, we will discuss how we synthesize and integrate molecular 2D crystals to realize magical photonic and electronic properties. For example, we recently discovered room-temperature, switchable charge localization in high-quality hybrid molecule based transistors. We will end with a brief discussion about a molecule-based quantum solid platform for bottom-up design and control of optoelectronic and correlated electronic properties.