Exciton optics, dynamics, and transport in atomically thin semiconductors
Artikel i vetenskaplig tidskrift, 2022

Atomically thin semiconductors such as transition metal dichalcogenide (TMD) monolayers exhibit a very strong Coulomb interaction, giving rise to a rich exciton landscape. This makes these materials highly attractive for efficient and tunable optoelectronic devices. In this Research Update, we review the recent progress in the understanding of exciton optics, dynamics, and transport, which crucially govern the operation of TMD-based devices. We highlight the impact of hexagonal boron nitride-encapsulation, which reveals a plethora of many-particle states in optical spectra, and we outline the most novel breakthroughs in the field of exciton-polaritonics. Moreover, we underline the direct observation of exciton formation and thermalization in TMD monolayers and heterostructures in recent time-resolved, angle-resolved photoemission spectroscopy studies. We also show the impact of exciton density, strain, and dielectric environment on exciton diffusion and funneling. Finally, we put forward relevant research directions in the field of atomically thin semiconductors for the near future.

Författare

Raul Perea Causin

Chalmers, Fysik, Kondenserad materie- och materialteori

Daniel Erkensten

Chalmers, Fysik, Kondenserad materie- och materialteori

Jamie M. Fitzgerald

Philipps-Universität Marburg

J. J.P. Thompson

Philipps-Universität Marburg

Roberto Rosati

Philipps-Universität Marburg

Samuel Brem

Philipps-Universität Marburg

Ermin Malic

Philipps-Universität Marburg

Chalmers, Fysik, Kondenserad materie- och materialteori

APL Materials

2166-532X (eISSN)

Vol. 10 10 100701

Graphene Core Project 3 (Graphene Flagship)

Europeiska kommissionen (EU) (EC/H2020/881603), 2020-04-01 -- 2023-03-31.

Ämneskategorier

Atom- och molekylfysik och optik

Annan fysik

Den kondenserade materiens fysik

DOI

10.1063/5.0107665

Mer information

Senast uppdaterat

2023-10-25