Extended Data Fig. 1: Growth of SnS2/WSe2 vdW heterostructures.
From: High-order superlattices by rolling up van der Waals heterostructures

a, Pre-grown WSe2 monolayer. b–h, The top-layer SnS2 nucleates and grows at the edge (b–d) or the corner (e–h) of the pre-grown WSe2 monolayer and expands laterally to eventually achieve full coverage of monolayer SnS2 on monolayer WSe2 (d, h). Scale bars, 20 μm.