Fig. 1 | Nature Communications

Fig. 1

From: Van der Waals epitaxial growth and optoelectronics of large-scale WSe2/SnS2 vertical bilayer p–n junctions

Fig. 1The alternative text for this image may have been generated using AI.

Synthesis of large-scale type-III WSe2/SnS2 heterostructure. a Schematic of vertically stacked WSe2/SnS2 vdW heterostructure. b Band alignment of type-III WSe2/SnS2 junction. c Schematic illustrating the two-step vapor expitaxy growth of WSe2/SnS2 heterostructure. d Typical optical image of as-grown large-scale monolayer WSe2 triangular flake achieved after step 1. e Optical image of as-grown vertically stacked WSe2/SnS2 heterostructure after step 2 by using the same flake in Fig. 1d. All the scale bars: 200 μm

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