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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Georgia","serif"">Please join us today at 11:30am in the Smith Seminar Room for the Condensed Matter Experiment Seminar presented by David W. McComb, Professor & Ohio Research Scholar, Director,
Center for Electron Microscopy and Analysis, OSU Department of Materials Science and Engineering.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Georgia","serif""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Georgia","serif"">TITLE: Probing complex interfaces and nanostructures using analytical electron microscopy<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Georgia","serif""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Georgia","serif"">ABSTRACT: Electron energy-loss spectroscopy (EELS) when performed in the scanning transmission electron microscope (STEM) is, arguably, the only technique that can provide information
of chemistry and bonding in solid materials with near atomic scale spatial resolution. The method has been widely utilized for the study of atomically sharp engineered interfaces grown by thin film deposition methods. Applying STEM-EELS to the study of interfaces
in natural materials and real devices is a more complex challenge. In this talk I will use a number of examples to illustrate the insights that can be gained into the structure-property relationships in plasmonic nanostructures, multilayer films for solid
oxide fuel cells (SOFCs), mineralised tissue, wear debris in tissue and organic solar cells. The common aspect in all of these studies is the need to probe hard/soft or soft/soft interfaces between inorganic and organic materials. This presents considerable
challenges associated with sample preparation, electron beam damage and achievable spatial resolution. I will show that it is possible in many cases to obtain both qualitative and quantitative chemical information that can significantly enhance our understanding
in these complex systems. <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Georgia","serif""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Georgia","serif"">I will also present the vision for the new Center for Electron Microscopy and Analysis (CEMAS) at the Ohio State University. CEMAS is a major investment by OSU to create a magnet
center to address imaging and characterization needs in the physical, life, biomedical and engineering sciences at OSU. This custom-designed facility on West Campus will have an extensive range of SEM, TEM, FIB and sample preparation facilities, including
two aberration-corrected S/TEMs and will be available to support research in all academic, government and industrial establishments in Ohio and beyond.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Georgia","serif""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Georgia","serif"">Thank you,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Georgia","serif"">Trisch<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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