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MRSEC Seminar: Signatures of dark excitons in atomically thin semiconductors

Alexander Hoegele, Ludwig-Maximillians-Universität München
Monday, May 14, 2018 - 12:30pm to 1:30pm
PAT C-421

The optical properties of layered transition metal dichalcogenides are dominated by excitonic effects. While the photophysics of bright excitons with dipole-allowed optical transitions have been meanwhile well established, the role of dark excitons remains mostly unexplored. In my presentation, I will discuss signatures of dark excitons in the photoluminescence spectra of monolayer, bilayer and hetero-bilayer systems, and how their notion complements our understanding of optical excitations in atomically thin semiconductors.​