New Adventures in a Small World: Metals and Semiconductors at the Atomic Limit
The last decade has seen exponential growth in the science and technology of two-dimensional materials. Beyond graphene, there is a huge variety of layered materials that range in properties from insulating to superconducting that can be grown over large scales for a variety of electronic devices and quantum technologies, such as topological quantum computing, quantum sensing, and neuromorphic computing. In this talk, I will discuss the synthesis of a range of 2D layers over large areas for sensing and electronic devices, as well as recent breakthroughs in novel 2D heterostructures and realization of unique 2D allotropes of 3D materials. I will introduce a novel synthesis method, dubbed confinement heteroepitaxy (CHet), that enables the creation of atomically thin metals, enabling a new platform for creating artificial quantum lattices (AQLs) with atomically sharp interfaces and designed properties.
Dr. Robinson obtained his B.S. degree in Physics with minors in Chemistry and Mathematics from Towson University in 2001. He received his doctorate degree from The Pennsylvania State University in Materials Science and Engineering in 2005. In 2012, he joined the Penn State Materials Science and Engineering Department as an Assistant Professor and was promoted to an Associate Professor in 2015. He co-founded the Center for Two-Dimensional and Layered Materials and the NSF I/UCRC Center for Atomically Thin Multifunctional Coatings (ATOMIC), and currently serves as Co-Director of both. He is a 2015 NSF-CAREER recipient, and has authored or co-authored over 170 peer reviewed journal publications with a significant focus on low dimensional electronic materials. Check out his research as http://sites.psu.edu/robinsonresearch/.
“What could we do with layered structures with just the right layers? What would the properties of materials be if we could really arrange the atoms the way we want them ...” These words from Richard Feynman started the scientific world down the path to discover 2D materials. Dr. Robinson’s interests span a wide range of electronic materials capable of integration into many different technologies. However, low-dimensional materials for electronic and optoelectronic, as well as and radiation sensing have become a prime focus of his research. One such material is “graphene”, a single sheet of graphite presents a host of remarkable physical and chemical properties, many of which originate from its special electronic band structure. However, graphene is only the tip of the iceberg. Since 2012, Dr. Robinson’s focus has been on the synthesis and integration of 2D materials to form heterostructures with unprecedented electronic and optoelectronic performance. He focuses on developing synthesis, characterization, and integration techniques of many “beyond graphene” materials. These material systems include 2D material systems such as hexagonal boron nitride (hBN), transition-metal dichalcogenides in the form of MX2 (where M=transition metal such as Mo, W, Ti, Nb, etc. and X=S, Se, or Te), group IV chalcocengides, and 2D Nitrides beyond hBN.
Topics of interest:
Synthesis of 2D materials
Integration of 2D materials with 3D materials
Development of novel semiconductor materials