Fig. 1: Interlayer exciton PL revealing correlated states in angle-aligned WSe2/WS2 heterobilayer. | Nature Communications

Fig. 1: Interlayer exciton PL revealing correlated states in angle-aligned WSe2/WS2 heterobilayer.

From: Strong interaction between interlayer excitons and correlated electrons in WSe2/WS2 moiré superlattice

Fig. 1

a Schematic of the hBN encapsulated WS2/WSe2 heterobilayer. One piece of few-layer graphene (FLG) is used as the contact electrode and another piece is used as the back-gate electrode with the hBN layer working as the gate dielectric. b Schematic of the type-II alignment of the WS2/WSe2 heterobilayer moiré superlattice. c Gate-dependent PL spectra of device D1 at 4.2 K, with CW excitation centered at 1.959 eV with an excitation power of 5 µW. d Schematics of electron (red dot) configuration for fillings of n = 1 and n = 1/3 (2/3 and 1/3 are particle-hole symmetric) in the moiré superlattice.

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