| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances and Discoveries in Non-equilibrium Driven Nanomaterials and Thin Films
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| Presentation Title |
Decoupling Irradiation-induced Heterogeneities in Two-dimensional Semiconductors through Atomic Scale Mapping of Optical Modes and Infrared Excitations |
| Author(s) |
Kory Durell Burns, Christopher Smyth, Eric Lang, Tinsae Alem, Elaina Truhart, Stephen McDonnell, Jordan Hachtel |
| On-Site Speaker (Planned) |
Kory Durell Burns |
| Abstract Scope |
Ion beam processing is a precise, site-selective defect engineering technique routinely used to functionalize surfaces by creating photon emitters, enhance thermal diffusivity, and stabilize charges in 2D materials. However, due to the complexity of analysis and need for specialized instrumentation, directly linking vibrational and optical modes to structural defects traditionally relies almost solely on theoretical calculations. In this talk, we provide an avenue to bridge the gap in the structure-processing-property relationship of 2D materials with aberration-corrected scanning transmission electron microscopy, monochromated electron energy loss spectroscopy, and ion beam irradiation. Specifically, we garner insight into the infrared excitations in the film, decouple defect bound modes at the M-point in the Brillouin Zone, and unveil mid-gap states in the optical signatures of the films at varying defect concentrations. Ultimately, we develop a framework to yield insight into the more efficient design of nanoelectronics, while pushing the physical limitations of 2D materials. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Characterization, Nanotechnology, Electronic Materials |