Extended Data Fig. 1: Structural characterization of the 4H-Au@1T′-WSe2 NWs. | Nature Materials

Extended Data Fig. 1: Structural characterization of the 4H-Au@1T′-WSe2 NWs.

From: 1T′-transition metal dichalcogenide monolayers stabilized on 4H-Au nanowires for ultrasensitive SERS detection

Extended Data Fig. 1

a, STEM image of the tip area of a 4H-Au@1T′-WSe2 NW. b,c, High-magnification HAADF-STEM images taken from the light blue dashed area (b) and light blue area (c) of the 4H-Au@1T′-WSe2 NW in a. d,e, The corresponding FFT patterns recorded in the pink dashed area (d) in b and the pink area (e) in c, respectively. f-j, STEM image (f) and the corresponding EDS elemental mappings of Au+W+Se (g), Au (h), W (i) and Se (j) of a segment of 4H-Au@1T′-WSe2 NW. k, Atomic-resolution HAADF-STEM image showing the interface between 1T′-WSe2 ML and 4H-Au NW. l, The corresponding integrated pixel intensity profiles of 1T′-WSe2 ML in red rectangle and 4H-Au NW in blue rectangle in Unit 2 in k.

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