Extended Data Fig. 1: Optical image of device D1.
From: Creation of moiré bands in a monolayer semiconductor by spatially periodic dielectric screening

The black, blue, and yellow dashed curves outline the few-layer graphite gate electrode, the graphene layer, and the WSe2 monolayer, respectively. The scale bar is 15 μm. The device structure of D1 is shown in Fig. 1c.