Doctor of Philosophy, Columbia University (2017)
- Linearly Polarized Excitons in Single- and Few-Layer ReS2 Crystals ACS PHOTONICS 2016; 3 (1): 96-101
In-Plane Anisotropy in Mono- and Few-Layer ReS2 Probed by Raman Spectroscopy and Scanning Transmission Electron Microscopy
2015; 15 (9): 5667-5672
Rhenium disulfide (ReS2) is a semiconducting layered transition metal dichalcogenide that exhibits a stable distorted 1T phase. The reduced symmetry of this system leads to in-plane anisotropy in various material properties. Here, we demonstrate the strong anisotropy in the Raman scattering response for linearly polarized excitation. Polarized Raman scattering is shown to permit a determination of the crystallographic orientation of ReS2 through comparison with direct structural analysis by scanning transmission electron microscopy (STEM). Analysis of the frequency difference of appropriate Raman modes is also shown to provide a means of precisely determining layer thickness up to four layers.
View details for DOI 10.1021/acs.nanolett.5b00910
View details for Web of Science ID 000361252700001
View details for PubMedID 26280493