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CONDENSED-MATTER PHYSICS

Quasi-two-dimensional electron–hole droplets

The observation of a room-temperature stable liquid phase of electrons and holes in a quasi-two-dimensional photocell paves the way towards optoelectronic devices that harness collective phenomena.

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Correspondence to Stéphane Berciaud.

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Fig. 1: Excitons, electrons and holes in a quasi-2D photocell.
Fig. 2: Visualizing an electron–hole droplet.