Electron Microscopy

Contact: Eric Stach

(a) Interface structure resolved using Hitachi-STEM at 200kV. (b) Z-contrast image showing single U atoms. (c) Morphology of a nano-particle revealed by TEM 3D tomography technique. (d) High resolution TEM image taken using FEI-Titan at 300kV.

Knowledge of structure and chemistry at the atomic scale is crucial to modern materials science and nanotechnology. Advanced electron microscopy can provide the fundamental knowledge that will enables us not only to understand, but also to control the physical and chemical behavior of nanostructured materials. The electron microscopy facility at the CFN focuses on identifying nanoscale structure-property relationships of energy-related materials by employing state-of-the-art instruments. We emphasize technique development that will enhance our facility capabilities for user-based science as well as research projects that we lead to further the DOE’s energy mission.

Thanks to recent advances in electron optics – including aberration correction – a new generation of transmission electron microscopes have become available which are capable of image resolutions better than 0.1 nm and spectroscopic resolutions better than 0.4 eV. The instruments can accommodate special purpose sample stages that convert these microscopes into true experimental nanomaterials laboratories. As a result, we can conduct experiments that are crucial to the advancement of nanoscience and nanotechnology, ranging from in-situ sample fabrication and structural characterization to property measurements, all in pursuit of answers to fundamental energy challenges.

Associated Group Facilities

Electron Microscopy Facility

Group Members

Staff

• Eric Stach, Development and application of in-situ electron microscopy techniques.  Nanostructure nucleation and growth. In-situ observations of catalytic reactions.
• Eli Sutter, In-situ and analytical transmission electron microscopy of nanostructures and thin films.
• Dong Su, Scanning transmission electron microscopy and electron energy-loss spectroscopy on perovskite materials, nano-functional materials and catalysts
• Lihua Zhang, High resolution TEM, in-situ TEM and analytical TEM. Identification of structure-property relationships of nanoscale energy related materials using state-of-the-art TEM methods.
• Kim Kisslinger, Sample preparation for electron microscopy, with emphasis on mechanical thinning and polishing, ion-milling, and focused-ion-beam (FIB) lift-out technique.

Postdoctoral Fellows

• Rosa Diáz Rivas, Environmental Transmission Electron Microscopy, in-situ studies of catalytic reactions

Visiting Researchers

• Wonyoung Chang, Korean Institute of Science and Technology, In-situ studies of Li-ion battery materials using x-ray and electron microscopy techniques
• Kyo Seon Hwang, Korean Institute of Science and Technology, nanoscopic analysis (mechanical and structural) of new sensing materials

Last Modified: September 14, 2011
Please forward all questions about this site to: Pam Ciufo.

One of ten national laboratories overseen and primarily funded by the Office of Science of the U.S. Department of Energy (DOE), Brookhaven National Laboratory conducts research in the physical, biomedical, and environmental sciences, as well as in energy technologies and national security. Brookhaven Lab also builds and operates major scientific facilities available to university, industry and government researchers. Brookhaven is operated and managed for DOE's Office of Science by Brookhaven Science Associates, a limited-liability company founded by the Research Foundation for the State University of New York on behalf of Stony Brook University, the largest academic user of Laboratory facilities, and Battelle, a nonprofit, applied science and technology organization.

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