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Exciton binding energy of monolayer WS₂.

ABSTRACT: The optical properties of monolayer transition metal dichalcogenides (TMDC) feature prominent excitonic natures. Here we report an experimental approach to measuring the exciton binding energy of monolayer WS₂ with linear differential transmission spectroscopy and two-photon photoluminescence excitation spectroscopy (TP-PLE). TP-PLE measurements show the exciton binding energy of 0.71 ± 0.01 eV around K valley in the Brillouin zone.

SUBMITTER: Zhu B

PROVIDER: S-EPMC4363839 | biostudies-literature | 2015 Mar

REPOSITORIES: biostudies-literature

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Exciton binding energy of monolayer WS₂.

Zhu Bairen B Chen Xi X Cui Xiaodong X

Scientific reports 20150318

The optical properties of monolayer transition metal dichalcogenides (TMDC) feature prominent excitonic natures. Here we report an experimental approach to measuring the exciton binding energy of monolayer WS₂ with linear differential transmission spectroscopy and two-photon photoluminescence excitation spectroscopy (TP-PLE). TP-PLE measurements show the exciton binding energy of 0.71 ± 0.01 eV around K valley in the Brillouin zone. ...[more]

PMID: 25783023

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