Fig. 4: Electrical, optical and ferroelectric properties of as-grown R-stacked bilayer WS2 samples. | Nature Communications

Fig. 4: Electrical, optical and ferroelectric properties of as-grown R-stacked bilayer WS2 samples.

From: Remote epitaxy of single-crystal rhombohedral WS2 bilayers

Fig. 4

Electrical measurements of monolayer (a) and bilayer (b) WS2 samples at room temperature, μ is the carrier mobility. Circularly polarized photoluminescence (PL) spectra of monolayer (c) and bilayer (d) WS2 samples on a-plane sapphire, ρ is the circular helicity. The local piezo force microscopy (PFM) amplitude and phase loops during the switching process of monolayer (e) and bilayer (f) WS2 samples.

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