Exciton binding energy of monolayer WS2

Bairen Zhu; Xi Chen; Xiaodong Cui

doi:10.1038/srep09218

Exciton binding energy of monolayer WS₂

Bairen Zhu, Xi Chen, Xiaodong Cui^*

^*Corresponding author for this work

The University of Hong Kong

Research output: Contribution to journal › Article › peer-review

616 Citations (Scopus)

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.

Original language	English
Article number	9218
Journal	Scientific Reports
Volume	5
DOIs	https://doi.org/10.1038/srep09218
Publication status	Published - 17 Mar 2015
Externally published	Yes

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10.1038/srep09218

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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.",

author = "Bairen Zhu and Xi Chen and Xiaodong Cui",

note = "Funding Information: The work is supported by Area of excellency (AoE/P-04/08), CRF of Hong Kong Research Grant Council(HKU9/CRF/13G) and SRT on New Materials of The University of Hong Kong.",

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AU - Chen, Xi

AU - Cui, Xiaodong

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PY - 2015/3/17

Y1 - 2015/3/17

N2 - 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.

AB - 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.

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VL - 5

JO - Scientific Reports

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Exciton binding energy of monolayer WS₂

Abstract

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