Molecular-level probing of organizational structure and electronic properties of weakly surface bound domain

Tuesday, March 23, 2010

4:30 pm to 5:30 pm
115 Teer Building, Duke University


Thomas Pearl

Thomas P. Pearl, PhD is a professor in the Department of Physics at North Carolina State University.

Abstract: The growth of chemically and electronically tuned, monolayer thin films, including organic molecules on metallic surfaces, is steered by the balance of adsorbate-surface and interadsorbate interactions. Intercommunication between functional groups for individual adsorbates often serves as the primary driving force that controls monolayer ordering as well as electronic structure especially in the limit of weak interaction between the adsorbate and substrate. In this talk I will discuss the arrangement and interfacial electronic properties of ordered molecular domains that form through interadsorbate hydrogen bonding at noble metal surfaces probed with high spatial resolution, low temperature scanning tunneling microscopy (STM) and spectroscopy, as well as supporting density functional theory (DFT) calculations.