About this Abstract |
Meeting |
2021 TMS Annual Meeting & Exhibition
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Symposium
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AI/Data Informatics: Applications and Uncertainty Quantification at Atomistics and Mesoscales
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Presentation Title |
Harnessing Materials Data and Simulation Capabilities for the Accelerated Discovery of Photocathode Materials |
Author(s) |
Evan Antoniuk, Yumeng Yue, Yao Zhou, Peter Schindler, W. Andreas Schroeder, Theodore Vecchione, Bruce Dunham, Piero Pianetta, Evan Reed |
On-Site Speaker (Planned) |
Evan Antoniuk |
Abstract Scope |
The recent development of open-source computational databases has enabled data-driven approaches to identify candidate materials for various applications. As an illustrative example of the potential of these data-driven approaches, we will highlight our efforts in computationally screening for photocathode materials for use in hard x-ray free electron lasers. Past efforts for the discovery of photocathode materials have primarily utilized trial and error approaches with very low throughput. Informed by this available experimental data, we develop a generalizable density functional theory-based photoemission model that is suitable for rapidly identifying candidate photocathode materials. With the aid of this model, we calculate the photoemission properties of over 10,000 bulk crystals, creating several orders of magnitude more photoemission data than before. We then screen this dataset to discover hundreds of candidate photocathode materials. Through close partnerships with experimental collaborators, we will discuss the potential for experimental realization of these newly discovered photocathode materials. |
Proceedings Inclusion? |
Planned: |
Keywords |
Computational Materials Science & Engineering, Modeling and Simulation, |