Fig. 3: STEM characterization of N-WS2.

a HAADF-STEM image of N-WS2. b The line profile intensity taken along the two lines of Line 1 and Line 2. c EDS element mapping of N-WS2 with even-distributed W, S, and N
a HAADF-STEM image of N-WS2. b The line profile intensity taken along the two lines of Line 1 and Line 2. c EDS element mapping of N-WS2 with even-distributed W, S, and N