Fig. 2: Characterization of the double-homojunction polytypic CZTS nanocrystals. | Nature Communications

Fig. 2: Characterization of the double-homojunction polytypic CZTS nanocrystals.

From: A library of polytypic copper-based quaternary sulfide nanocrystals enables efficient solar-to-hydrogen conversion

Fig. 2

Low-magnification HAADF-STEM (a) and high-magnification HAADF-STEM (b) images. c A representative aberration-corrected high-resolution HAADF-STEM image. FFT patterns of the corresponding orange (d), green (e) and blue (f) areas in c, respectively. g Schematic graph of a DHP nanocrystal. h XRD pattern. i EDS element mapping of three randomly selected double-homojunction polytypic CZTS nanocrystals. Scale bars are 50 nm for a and i, 20 nm for b, and 5 nm for c, respectively.

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