In-Situ (S)TEM/DTEM: From High Spatial Resolution to High Temporal Resolution
Tuesday, January 7, 2014
1:00 pm - 2:00 pm
Nigel D. Browning/Pacific Northwest National Lab
In this presentation, I will discuss the recent developments in the design and implementation of in-situ stages being pursued at the Pacific Northwest National laboratory (PNNL). Examples of the use of these capabilities for the direct imaging of oxidation and reduction in metals, ceramics and catalytic systems and to identify the fundamental processes involved in nucleation and growth of nanostructures from solution will be presented. As the in-situ stages have been designed to be incorporated into both high spatial resolution aberration corrected (S)TEM as well as into high temporal resolution Dynamic TEM (DTEM), the potential for future experiments to study dynamics, including those in live biological structures, will also be discussed. This research is performed as part of the Chemical Imaging Initiative at Pacific Northwest National Laboratory under Contract DE-AC05-76RL01830 operated for DOE by Battelle. This work is supported in part by the United States Department of Energy, Basic Energy Sciences Grant No. DE-FG02-03ER46057. A portion of the research was performed using EMSL, a national scientific user facility sponsored by the Department of Energy's Office of Biological and Environmental Research and located at Pacific Northwest National Laboratory.