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This calendar includes all events from the following individual calendars: Department of Chemistry Alumni Events, Department Events (events of general interest and/or relevant to all research areas), Diversity, Equity, and Inclusion Events, and events related to specific research areas and programs (Analytical Chemistry, Chemical Biology, Chemistry-Biology Interface Training Program, Inorganic Chemistry & Materials Chemistry, Organic Chemistry, Physical Chemistry), as well as Department of Chemical and Biomolecular Engineering Seminars & Events.
Professor Kwabena Bediako, University of California-Berkeley, "Defects and Disorder
in Superlattices: New Twists in 2D Materials"
- Event Type
- Professor Catherine Murphy, Physical Chemistry
- CLSL B102
- Sep 13, 2023 2:00 - 3:00 pm
- Randy Prince
- Originating Calendar
- Chemistry - Physical Chemistry Seminars
The term “defect” is usually associated with something going wrong during materials synthesis or fabrication. Yet surface defects tend to be the most reactive sites in interfacial chemical reactions and the physical properties of extended solids (magnetism, electronic transport) can be usefully controlled by the nature of defects and disorder within the bulk crystal. The challenge is understanding how defects impact these phenomena and ultimately controlling the type and density of defect. In this talk, I will discuss my group’s efforts to map topological defects and subtle lattice deformations in moiré superlattices of 2D materials and exploit these to tailor interfacial electrochemical reactions. I will also discuss our efforts to understand the effects of intercalant superlattice disorder on magnetism in intercalation compounds of transition metal dichalcogenides.