Strain‐Tuning of 2<scp>D</scp>Transition Metal Dichalcogenides

An, Zhisheng; Zopf, Michael; Ding, Fei

doi:10.1002/9783527813933.ch14

Cited by 1 publication

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“…Band alignments of different material combinations allow for tunability of the emission wavelength of spatially-indirect excitons that are made up from electrons and holes residing in the individual layers of the bilayer system. The possibility to influence the strength of the Coulomb interaction by dielectric [1][2][3][4] and strain [5][6][7] engineering has created additional tuning knobs that can be employed to design optoelectronic building blocks with tailored absorption and emission properties [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Confined-state physics and signs of fermionization of moiré excitons in WSe₂/MoSe₂heterobilayers

et al. 2023

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We revisit and extend the standard bosonic interpretation of interlayer excitons in the moiré potential of twisted heterostructures of transition-metal dichalcogenides. In our experiments, we probe a high quality MoSe2/WSe2 van der Waals bilayer heterostructure via density-dependent photoluminescence spectroscopy and reveal strongly developed, unconventional spectral shifts of the emergent moiré exciton resonances. The observation of saturating blueshifts of successive exciton resonances allow us to explain their physics in terms of a model utilizing fermionic saturable absorbers. This approach is strongly inspired by established quantum-dot models, which underlines the close analogy of interlayer excitons trapped in pockets of the moiré potential, and quantum emitters with discrete eigenstates.

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Section: Introductionmentioning

confidence: 99%

Confined-state physics and signs of fermionization of moiré excitons in WSe₂/MoSe₂heterobilayers

et al. 2023

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Strain‐Tuning of 2DTransition Metal Dichalcogenides

Cited by 1 publication

References 161 publications

Confined-state physics and signs of fermionization of moiré excitons in WSe₂/MoSe₂heterobilayers

Confined-state physics and signs of fermionization of moiré excitons in WSe₂/MoSe₂heterobilayers

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Strain‐Tuning of 2DTransition Metal Dichalcogenides

Cited by 1 publication

References 161 publications

Confined-state physics and signs of fermionization of moiré excitons in WSe2/MoSe2heterobilayers

Confined-state physics and signs of fermionization of moiré excitons in WSe2/MoSe2heterobilayers

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Confined-state physics and signs of fermionization of moiré excitons in WSe₂/MoSe₂heterobilayers

Confined-state physics and signs of fermionization of moiré excitons in WSe₂/MoSe₂heterobilayers