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Mark Longergan, Mentor
Chemistry

Richard Fuller, McNair Scholar

Mark Lonergan, Associate Professor of Chemistry, received his PhD from Northwestern in 1994 and did post-doctoral work at the California Institute of Technology. He joined the UO faculty in 1996 where he is also a member of the Materials Science Institute. Work in the Lonergan lab is based on the discovery and quantitative understanding of interfacial electron transfer processes that depend on applied bias in a complex, nonlinear and often asymmetric way. This pursuit is at the heart of efforts to identify and control novel systems that enhance or mimic the behavior of conventional semiconductor interfaces, which form the basis for nearly all present day microelectronic devices. "Our studies over the past five years have focused on conjugated or 'conducting' polymers where we have been working on three major projects that all draw in some way on the unique redox (doping) chemistry of conjugated polymers relative to more traditional inorganic conductors." Lonergan's publications include "A Tunable Semiconductor Diode Based on an Inorganic Semiconductor | Conjugated Polymer Interface," Science (1997); "Electrochemical Characterization of Polyacetyelene Ionomers, and Polyelectrolyte Mediated Electrochemistry Toward Interfaces Between Dissimilarly Doped Conjugated Polymers," Journal of the American Chemical Society (2002).