Fig. 1: Characterization of grain boundaries (GBs) in CVD-grown polycrystalline 1L WS2 film. | Nature Communications

Fig. 1: Characterization of grain boundaries (GBs) in CVD-grown polycrystalline 1L WS2 film.

From: Grain-boundary-rich polycrystalline monolayer WS2 film for attomolar-level Hg2+ sensors

Fig. 1

a, b AFM images of low and high magnifications. The height profile was taken from a dash line as shown in Supplementary Fig. 5c. c, d Low-magnification HAADF-STEM image and SAED pattern of as-grown polycrystalline 1L WS2 film. Inset in c is the distribution of grain sizes. e Atomic scale HAADF-STEM image of a typical GB in the polycrystalline 1L WS2 film, primarily composed of 5|7 rings (purple lines).

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