When 3:30 PM - 5:00 PM Jan 27, 2012
Where 1670 CSE
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Materials For Energy: In Situ Synchrotron X-Ray Studies for Materials Design and Discovery

Stephen Streiffer
Argonne National Laboratory, Physical Sciences and Engineering

Transformational scientific discovery and the grand challenges in energy demand novel molecules and materials. Thus, a key part of Argonne’s overarching mission is the rationale design and synthesis of new substances displaying revolutionary scientific phenomena or use-inspired functionality. A central element of our strategy for accomplishing this is a strong emphasis on developing the science of materials synthesis – predicting and controlling not only where but also ultimately how to place individual atoms and molecules within a structure to achieve breakthrough properties. In this talk, I will highlight our efforts within this framework to understand the synthesis-structure-property relationships of multicomponent epitaxial heterostructures. Using the two examples of metalorganic chemical vapor deposition  of epitaxial Pb(Zr,Ti)O3 and of (In,Ga)N, this talk will illustrate how in-situ synchrotron x-ray scattering and fluorescence can be utilized to explore complex synthesis processes in real time, and probe the physics of cooperative phenomena in an extremely well-controlled environment.

This work was supported by the U.S. Dept. of Energy, Office of Science Basic Energy Sciences, under contract DE-AC02-06CH11357..

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