Ultrafast electron localization and screening in a transition metal dichalcogenide.

ABSTRACT: The coupling of light to electrical charge carriers in semiconductors is the foundation of many technological applications. Attosecond transient absorption spectroscopy measures simultaneously how excited electrons and the vacancies they leave behind dynamically react to the applied optical fields. In compound semiconductors, these dynamics can be probed via any of their atomic constituents with core-level transitions into valence and conduction band. Typically, the atomic species forming the compound contribute comparably to the relevant electronic properties of the material. One therefore expects to observe similar dynamics, irrespective of the choice of atomic species via which it is probed. Here, we show in the two-dimensional transition metal dichalcogenide semiconductor MoSe₂

SUBMITTER: Schumacher Z 

PROVIDER: S-EPMC10104484 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature