Nano-spectroscopy of excitons in atomically thin transition metal dichalcogenides.

Journal

Nature communications

ISSN: 2041-1723

Titre abrégé: Nat Commun

Pays: England

ID NLM: 101528555

Informations de publication

Date de publication:
27 Jan 2022

Historique:

received: 02 08 2021

accepted: 06 01 2022

entrez: 28 1 2022

pubmed: 29 1 2022

medline: 29 1 2022

Statut: epublish

Résumé

Excitons play a dominant role in the optoelectronic properties of atomically thin van der Waals (vdW) semiconductors. These excitons are amenable to on-demand engineering with diverse control knobs, including dielectric screening, interlayer hybridization, and moiré potentials. However, external stimuli frequently yield heterogeneous excitonic responses at the nano- and meso-scales, making their spatial characterization with conventional diffraction-limited optics a formidable task. Here, we use a scattering-type scanning near-field optical microscope (s-SNOM) to acquire exciton spectra in atomically thin transition metal dichalcogenide microcrystals with previously unattainable 20 nm resolution. Our nano-optical data revealed material- and stacking-dependent exciton spectra of MoSe

Identifiants

DOI: 10.1038/s41467-022-28117-x PMID: 35087038 PMC: PMC8795359

pubmed: 35087038

doi: 10.1038/s41467-022-28117-x

pii: 10.1038/s41467-022-28117-x

pmc: PMC8795359

doi:

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

Pagination

542

Subventions

Organisme : DOE | Office of Science (SC)

ID : DE-SC0019443

Informations de copyright

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