Shen J Dillon
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- Professor Shen J. Dillon received his Bachelor’s degree and Doctorate of Philosophy in Materials Science and Engineering from Lehigh University in 2002 and 2007. His doctoral thesis focused on segregation to and the atomic structure of grain boundaries in ceramics and their relation to microstructural evolution. Following his graduation in 2007, Dillon went to work as a Research Associate at Carnegie Mellon University and Visiting Professor at Lehigh University. At Carnegie Mellon, the focus of his work was three-dimensional characterization of microstructures in order to obtain data critical to understanding microstructural evolution. Dillon spent the 2008 academic year as a Visiting Research Scientist at the Massachusetts Institute of Technology working on materials for energy storage. He joined the faculty in the Department of Materials Science and Engineering at the University of Illinois at Urbana-Champaign as a visiting assistant professor in 2008 and as an assistant professor in 2009.
My research focuses on linking atomic-scale processes in materials to the microstructural level and bulk properties. Much of the current work relates to the role of structure, defects, and interfaces in affecting materials for energy applications. Significant effort is being directed towards in-situ characterization of materials in liquid, gaseous, and plasma environments.
Many critical phenomena that control materials processing and performance occur at interfaces, surface, grain boundaries, and other internal defects. The nature of the structure and dynamics of these interfaces and defects are highly complex and fully understanding them has been an ongoing challenge. As engineered materials become more complex and as microstructural length scales are reduced toward the nanoscale, the role of interfaces has become increasingly important in affecting performance. Many questions about the distributions of interfaces and defects; their structure, chemistry, energy, and effect on various properties still remain. Multi-scale approaches are critical for detailing the local structure of defects and their distribution within materials. Ongoing research seeks to apply advanced characterization techniques, such as atomic-resolution electron microscopy, three-dimensional reconstructions, and in-situ observation, to probe defects and interfaces in materials at various length scales. Promoting and exploiting advances in characterization enables new insights into scientific and engineering problems; such as optimizing lithium ion batteries. The development of new scientific paradigms will enable novel approaches to engineering materials of practical importance.
Selected Articles in Journals
- K. Tai, L. Feng and S.J. Dillon "Kinetics and Thermodynamics Associated with Bi Adsorption Transitions at Cu and Ni Grain Boundaries," J. Appl. Phys. 113 193507 (2013).
- K. Tai, T. Houlahan, J.G. Eden, and S.J. Dillon, "Integration of microplasma with transmission electron microscopy: Real-time observation of gold sputtering and island formation," Scientific Reports, 3, 1323 (2013).
- K. Tai and S.J. Dillon, Scaling effects on Boundary Diffusivity; Au in Cu, Acta Mater., 61 1851 (2013).
- K. Tai, A. Lawrence, M.P. Harmer, and S.J. Dillon, "Misorientation Dependence of Al2O3 Grain Boundary Thermal Resistance," Appl. Phys. Lett. 102 034101 (2013).
- S.N. Arshad, T.G. Lach, M. Pouryazdan, H. Hahn, P. Bellon, S.J. Dillon, and R.S. Averback, "Dependence of Shear Induced Mixing on Length Scale," Scripta Mater. 68[3-4] 215-218 (2012).
- Y. Liu, X. Chen, K-W Noh, S.J. Dillon, Electron beam induced deposition of silicon nanostructures from a liquid phase precursor, Nanotechnology, 23 385302 (2012).
- S.J. Dillon and K. Sun, Microstructural Design Considerations for Li-Ion Batteries, Current Opinion in Solid State and Materials Science, 16, 153-162 (2012).
- K.-W. Noh, Y. Liu, L. Sun, and S.J. Dillon, "Challenges associated with in-situ TEM in environmental systems: The case of silver in aqueous solutions," Ultramicroscopy, 116, 34-38 (2012).
- X. Chen, K.-W. Noh, J.G. Wen, and S.J. Dillon, In-situ electrochemical wet cell TEM characterization of solid-liquid interactions between Ni and Aqueous NiCl2, Acta Mater. 60, p. 192-198 (2012).
- L. Sun, K.-W. Noh, J.G. Wen, and S.J. Dillon, In-situ TEM observation of silver oxidation in ionized/atomic gas, Langmuir 27, 14201-14206 (2011).
- L. Sun, N. Karanjgaokar, K. Sun, I. Chasiotis, W.C. Carter, and S. Dillon, High-Strength All-Solid Lithium Ion Electrodes based on Li4Ti5O12, J. Power Sources, 196 p. 2507 (2011).
- K. Sun and S. Dillon, A Mechanism for the Improved Rate Capability of Cathodes by Lithium Phosphate Surficial Films Elec. Chem. Comm., 13 p. 200 (2011).
- S.J. Dillon, M.P. Harmer, and G.S. Rohrer, Influence of interface energies on solute partitioning mechanisms in doped aluminas, Acta Mater. 58 p. 5097 (2010).
- S.J. Dillon, M.P. Harmer, and G.S. Rohrer, The Relative Energies of Normal and Abnormal Grain boundaries Displaying Different Complexions, J. Amer. Ceram. Soc. 93 p. 1796 (2010).
- S.J. Dillon and G.S. Rohrer, "Mechanism for the Development of Anisotropic Grain Boundary Character Distributions during Normal Grain Growth," Acta Mater. 57 p. 1 (2009).
- S.J. Dillon and G.S. Rohrer, Characterization of the Grain Boundary Character and Energy Distributions of Yttria using Automated Serial Sectioning and EBSD in the FIB, J. Amer. Ceram. Soc., 92 p. 1580 (2009).
- S.J. Dillon, S.K. Behera, and M.P. Harmer, "An Experimentally Determined Quantifiable Solute Drag Force, Acta Mater. 56 p. 1374 (2008).
- S.J. Dillon M. Tang, W.C. Carter and M.P. Harmer, " Complexion: A New Concept for Kinetic Engineering of Materials," Acta Mater., 55 p. 6208 (2007).
- S.J. Dillon and M.P. Harmer, "Multiple Grain Boundary Transitions in Ceramics: A Case Study of Alumina," Acta Mat. 55 p. 5247 (2007).
- National Science foundation, CAREER award (2013)
- Department of Energy, Early Career Award (2011)