Fig. 3
From: Strong interlayer hybridization in the aligned SnS2/WSe2 hetero-bilayer structure
Nano-XPS maps of the SnS2/WSe2 heterostructure: a Optical image of a probed region on the specimen, which contains the flakes. b XPS survey spectra, acquired on both the WSe2 single layer (blue curve) and the SnS2/WSe2 hetero-bilayer (red curve) with a photon energy of 100 eV. c Typical W 4f integrated intensity map, revealing the WSe2 ML domains marked in orange intensity color scale. d Sn 4d integrated intensity image, presenting a reversed intensity contrast with respect to the map of Fig. 3c; the SnS2 regions that partially cover the WSe2 flakes appear as orange in the image
