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Excitons stabilize above the band gap in bilayer WSe2

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Electric field tunable interlayer excitons in a van der Waals bilayer emit at an energy of twice the band gap.

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Fig. 1: Charge-transfer excitons in 2D bilayers.

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Correspondence to Ursula Wurstbauer.

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Saigal, N., Wurstbauer, U. Excitons stabilize above the band gap in bilayer WSe2. Nat. Nanotechnol. 19, 141–142 (2024). https://doi.org/10.1038/s41565-023-01559-0

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