Fig. 1: Epitaxial growth of halide perovskite/2D semiconductor heterostructures. | Nature Communications

Fig. 1: Epitaxial growth of halide perovskite/2D semiconductor heterostructures.

From: Facet-selective growth of halide perovskite/2D semiconductor van der Waals heterostructures for improved optical gain and lasing

Fig. 1

a Optical image of monolayer WSe2 fabricated on SiO2/Si substrate. b Optical image of CsPbI3/WSe2 heterostructure, the red/green/blue dotted lines on the edges of monolayer WSe2 and epitaxial perovskites highlight the corresponding orientation relationship between them. Scale bars, 50 μm (a) and 30 μm (b). c Scanning electron microscope (SEM) images of archetypal perovskite crystals directly grown on SiO2/Si substrate, scale bar, 50 μm. The inset shows the typical pyramid morphology, scale bar, 10 μm. d A library of halide perovskite/2D semiconductor (multi)heterostructures, scale bar, 30 μm.

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