Michael Bedzyk
Professor of Materials Science and Engineering and (by courtesy) Physics and Astronomy
Co-Director, Northwestern Synchroton Research Center
Chair of Materials Science and Engineering
Education
Ph.D. Physics, State University of New York, Albany, NY
M.S. Physics, State University of New York, Albany, NY
B.S. Physics and Mathematics, State University of New York, Brockport, NY
Research Interests
We develop novel X-ray probes for atomic-scale characterization of surfaces, interfaces, ultra-thin-films and nanostructures. In addition to using an in-house X-ray lab, we make extensive use of synchrotron X-ray facilities, where there is greatly enhanced chemical and structural sensitivity for studying systems as dilute as one-hundredth of an atomic monolayer.
We employ various conventional X-ray scattering and spectroscopy techniques, and have developed a number of novel methods for generating X-ray standing waves with differing characteristic length scales. These periodic X-ray probes are used to pinpoint the lattice location of adsorbate atoms on crystalline surfaces, to measure strain within epitaxially grown semiconductor and ferroelectric thin films, to locate heavy atoms within ordered ultrathin organic films, and to study polyion adsorption at charged liquid/solid interfaces.
Significant Recognition
- Fellow, American Association for the Advancement of Science, 2012
- Fellow, American Physical Society, 1998
- Bertram Eugene Warren Diffraction Physics Award, American Crystallographic Association, 1994
Significant Professional Service
- Management Board for DuPont-Northwestern-Dow- Collaborative Access Team (DND-CAT) at the Advanced Photon Source
- Director of the X-ray Diffraction Facility at NU
- Visiting research scientist, Argonne National Laboratory
- Professor of Physics and Astronomy (Joint Courtesy Appointment)
Selected Publications
- Emery, J. D.; Alaboson, J. M. P.; Bedzyk, M. J.; Hersam, M. C.; Marks, T. J., “Fundamental Performance Limits of Carbon Nanotube Thin-Film Transistors Achieved Using Hybrid Molecular Dielectrics”, ACS nano, (2012)
- J. Lu, B. Liu, J. P. Greeley, Z. Feng, J. A. Libera, Y. Lei, M. J. Bedzyk, P. C. Stair and J. W. Elam, “Porous Alumina Protective Coatings on Palladium Nanoparticles by Self-Poisoned Atomic Layer Deposition”, Chemistry of Materials, (2012)
- S. R. Walter, J. Youn, J. D. Emery, S. Kewalramani, J. W. Hennek, M. J. Bedzyk, A. Facchetti, T. J. Marks and F. M. Geiger, “In-situ probe of gate dielectric-semiconductor interfacial order in organic transistors: origin and control of large performance sensitivities”, Journal of the American Chemical Society, (2012)
- Bedzyk, M. J.; McBriarty, M. E.; Ellis, D. E., “Structure and properties of a model oxide-supported catalyst under redox conditions: WOx/$\alpha$-Fe2O3 (0001)”, Surface science, (2012)
- D. E. Proffit, S. P. Harvey, A. Klein, R. Schafranek, J. D. Emery, D. B. Buchholz, R. P. H. Chang, M. J. Bedzyk and T. O. Mason, “Surface studies of crystalline and amorphous Zn-In-Sn-O transparent conducting oxides”, Thin Solid Films, (2012)
- Z. Feng, A. Kazimirov and M. J. Bedzyk, “Atomic Imaging of Oxide-Supported Metallic Nanocrystals”, Acs Nano, (2011)
- J. M. P. Alaboson, Q. H. Wang, J. D. Emery, A. L. Lipson, M. J. Bedzyk, J. W. Elam, M. J. Pellin and M. C. Hersam, “Seeding Atomic Layer Deposition of High-k Dielectrics on Epitaxial Graphene with Organic Self-Assembled Monolayers”, Acs Nano, (2011)
- Liu, J.; Chakhalian, J.; Gray, B. A.; Kareev, M.; Moon, E. J., “Epitaxial Stabilization of Ultrathin Films of Rare-Earth Nickelates”, Arxiv preprint arXiv:1112.5348, (2011)
