Mines/NREL/Materials Science Distinguished Lecture Series/Physics colloquium: Imaging and Controlling Nanoscale Crystal Growth in the Transmission Electron Microscope
March 20 @ 4:00 pm
Mines/NREL/Materials Science Distinguished Lecture Series/Physics colloquium
Frances M. Ross
IBM T. J. Watson Research Center, New York
Abstract: Building functional nanostructures with atomic level precision requires a detailed understanding of materials growth and the physics of self-assembly at the nanoscale. In situ imaging in the transmission electron microscope can provide unique information, because measurements can be made on individual nanostructures while they grow. Here we describe examples in which in situ electron microscopy helps to explore growth mechanisms and suggests strategies to build new types of structure. We will show nanocrystal epitaxy on graphene, electrochemical deposition processes in aqueous solutions and the formation of semiconductor structures from catalytic droplets. We conclude with a perspective on the exciting recent advances in electron microscopy and how these developments will impact in situ experiments in the future.
Hill Hall 202
Frances M. Ross received her B.A. in Physics and Ph.D. in Materials Science from Cambridge University. Her postdoc was at A.T.&T. Bell Laboratories, using in situ electron microscopy to study silicon oxidation and dislocation dynamics. She then joined the National Center for Electron Microscopy, Lawrence Berkeley National Laboratory, where she imaged anodic etching of Si. Moving to IBM’s T. J. Watson Research Center, she built a program around a microscope with deposition and focused ion beam capabilities and developed closed liquid cell microscopy to image electrochemical processes. Her interests include liquid cell microscopy, epitaxy, nanowires and electrodeposition. She has been a Visiting Scientist at Lund University and an Adjunct Professor at Arizona State University. She received the UK Institute of Physics Boys Medal, the MSA Burton Medal and MRS Outstanding Young Investigator and Innovation in Materials Characterization Awards, holds an Honorary Doctorate from Lund, and is a Fellow of APS, AAAS, MRS, MSA and AVS.