Enabling dissipation-less electronics with hydrodynamic transport in materials
Abstract
Transport phenomena, the irreversible processes driving physical systems towards equilibrium, underpin much of the complexity of the, natural world. The transfer of charge, heat, and spin in materials is governed by transport processes. Therefore, functional contro,l of materials relies on an understanding of these processes, making transport an essential ingredient of energy technologies, elect,ronic device design, and optimization of power systems. Our primary objective in this ONR YIP is to harness a fundamental understand,ing of electron and phonon transport in functional materials to design and optimize new dissipation-less devices for power and energ,y technology through the following: Thrust #1: A theoretical and computational framework for spatially-resolved coupled transport ca,lculations of electrons and phonons, and Thrust #2: Hydrodynamic transport in materials for energy-efficient and dissipationless ele,ctronics. This program introduces architectures for dissipation-less electronic devices that leverage hydrodynamics, the collective,flow of electrons in materials akin to classical fluids, and unconventional transport phenomena. Specifically we will (1) combine ca,lculations of carrier dynamics with transport in complex materials, (2) develop and apply approaches to spatially-resolved electron,and phonon transport within the Spatially Resolved Transport of Non-equilibrium Species (SpaRTaNS) framework, and (3) predict at the, device- and system-level optimized power electronics and energy-efficient devices, pushing the mesoscale limit to larger micrometer,-scale devices, linking our SpaRTaNS calculations with electronic circuit simulation software such as SPICE. In contrast with classi,cal fluids, preferred directions in crystalline materials introduce additional viscosity tensor contributions, including the dissipa,tionless Hall-viscosity component giving rise to isentropic flows, which do not dissipate heat and energy. The proposed ONR YIP syn,thesizes state-of-the-art ideas in materials science, condensed matter and computational physics, electronic devices, and thermal en,gineering in power and energy technology. Understanding electron transport plays a key role in designing advanced electronic devices,, phonon transport dictates thermal management, thereby playing an important role in optimizing power-dense devices, and hydrodynami,c transport could realize entirely new energy-efficient, dissipation-less electronics. Naval Power and Energy Systems play a critica,l role in enabling new naval capabilities. Outcomes of our program directly addresses power and energy S&T needs in (1) increased el,ectrical conductor current carrying capacity and loss reduction, (2) reducing the size and footprint of electric machines, enabling,high efficiency, highpower-dense electrical systems, and (3) increased thermal conductivity, and reduced sensitivity to temperature., Further, our proposed fundamental work on thermal-transport and non-uniform current density heat-dissipation would enable new desi,gns of resilient energy technologies, aligned with the Navy s recently released goals in climate change adaptation and resilience in, the Climate Action 2030 strategy.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Dec 06, 2022
- Source ID
- N000142312098
Entities
People
- Prineha Narang
Organizations
- Office of Naval Research
- United States Navy
- University of California, Los Angeles