Symposium EM09—Electronic and Ionic Dynamics at Solid-Liquid Interfaces

When interfaces are formed at the junction between materials and liquids, surprising emergent dynamical properties not present in either parent phase can spontaneously coalesce at the interface. Examples include the emergent catalytic, photochemical, electrochemical, and dynamical properties that form at solid-liquid interfaces made possible through the concerted interaction of ionic and electronic degrees of freedom between the two phases. These intriguing interfacial properties are driven by the dynamical and often coupled mechanisms operative at solid-liquid interfaces, including: ionic exchange, electron transfer, photo-excitation, strong electric fields, solvation, surface reconstructions/interphases, and non-equilibrium transition pathways. Enhanced control and understanding over coupled ionic and electronic dynamics across solid-liquid interfaces are poised to drive important material advances in energy, sensing, and computing applications; impacting broadly across fields such as low power computing, energy storage, superconductivity, solar fuels, and atmospheric carbon capture.

Despite the growth in applications and intensive ongoing research, the fundamental nature of the short timescale and small length scale processes at solid-liquid interfaces are not well understood due to the inherently far from equilibrium charge dynamics often present. To enable dramatic performance enhancements, leading theoretical and experimental efforts seek to understand the precise correlation between ionic and electronic dynamics across solid-liquid interfaces at ultrafast spectroscopic timescales and nanoprobe accessible dimensionalities. Some examples include a deeper understanding of multi-step reaction kinetics at solid-liquid interfaces, including the intricate balance between ionic motion and electron transfer, as well as the role of non-equilibrium excitations due to light interactions and coupled driving electric fields arising under external bias potentials in catalytic, photochemical, and electrochemical reaction processes.

This symposium's primary focus is on exploring the coupled relation between ionic and electronic transfer dynamics at solid-liquid interfaces, with an eye to understanding and engineering the coupling between these phenomena. The symposium will encompass complementary theoretical and experimental characterization presentations seeking to design and map electrostatic and electrochemical processes at solid-liquid interfaces. The aim is to present leading examples over the full range of research from fundamentals to near-future energy, computing, and sensing technological applications.

Invited speakers will be drawn from diverse backgrounds in the characterization and modeling of solid-liquid interfaces. This varied group will provide the broad platform necessary to offer a critical and timely assessment of coupled ion and electron dynamics at solid-liquid interfaces phenomena while offering the fertile environment needed to catalyze new interdisciplinary breakthroughs. A special emphasis will be dedicated to a generalized presentation on how the charge transfer dynamics at solid-liquid interfaces can be systematically engineered at short timescales and small length scales to complement, enhance, and surpass existing solid-liquid based energy and electronic device technologies.

Topics will include:

  • Theory and modeling of structural, chemical, and electronic properties influencing charge transfer dynamics at solid liquid-interfaces at atomic length scales and short time scales
  • Novel applications demonstrating an enhanced understanding of interfacial solid-liquid charge transfer dynamics in energy devices
  • Integration into sensing and computing applications and devices
  • Strongly correlated electronic phase transitions at ionic liquid interfaces
  • Atomically well-defined growth of solid-liquid interfaces (within the first few nanometers) and the resulting dynamical properties
  • Ultrafast and nano/atomic scale experimental characterization of solid-liquid interface chemical and charge transfer/transport properties
  • Next generation synchrotron and neutron mapping of solid-liquid interface dynamics

Invited Speakers:

  • Tomas Arias (Cornell University, USA)
  • Viola Birss (University of Calgary, Canada)
  • Anthony Bollinger (Brookhaven National Laboratory, USA)
  • Ethan J. Crumlin (Lawrence Berkeley National Laboratory, USA)
  • Giulia Galli (University of Chicago, USA)
  • Hidenori Hiramatsu (Tokyo Institute of Technology, Japan)
  • Ryosuke Jinnouchi (Toyota, Japan)
  • Karen Kavanagh (Simon Fraser University, Canada)
  • Chris Leighton (University of Minnesota, USA)
  • Paul McIntyre (Stanford University, USA)
  • Philip Rack (Oak Ridge National Laboratory, USA)
  • Hidekazu Tanaka (Osaka University, Japan)
  • Darren Walsh (University of Nottingham, United Kingdom)
  • Jainzhong Wu (University of Calirfornia, Riverside, USA)
  • Hua Zhou (Argonne National Laboratory, USA)

Symposium Organizers

Thomas Zac Ward
Oak Ridge National Laboratory
Materials Science and Technology Division
USA
865-576-4278, wardtz@ornl.gov

Kirk H. Bevan
McGill University
Department of Mining and Materials Engineering
Canada
514-398-2680, kirk.bevan@mcgill.ca

Shriram Ramanathan
Purdue University
School of Materials Engineering
USA
765-496-0546, shriram@purdue.edu

Marie-Lise Tremblay
Hydro Quebec
Institut de Recherche
Canada