This Project Grant award in the amount of $491,285 was provided by the National Science Foundation (NSF) under the Mathematical and Physical Sciences (CFDA 47.049) federal grant program. The award supports research at the University of Texas at Austin to conduct spatially, temporally, and spectrally resolved electrical probing of optical excitations in semiconductors. The key objectives are to study the generation, recombination, and dissociation of excitons - bound electron-hole pairs - and their role in optoelectronic applications of two-dimensional materials and heterostructures. The research team will leverage cryogenic laser illumination and microwave impedance microscopy techniques to extract properties of excitons, trions, exciton insulators, and topological moiré excitons with high spatial, temporal, and spectral resolutions. This work contributes to the fundamental understanding of the low-frequency response of optical excitations and exotic quantum phases in moiré superlattices. The award also supports an integrated research and education program to train students in modern nanofabrication, microwave engineering, laser optics, and scanning probe microscopy.
Mod # | Description | Reason For Modification | Federal Obligation (Click to sort descending) | Date (Click to sort ascending) |
|---|---|---|---|---|
| Not listed | $491.3k | 7/3/24 |