Fig. 3: Atomic-scale analysis and atomic coordination environment of Cu12Sb4S13. | Nature Communications

Fig. 3: Atomic-scale analysis and atomic coordination environment of Cu12Sb4S13.

From: Nested order-disorder framework containing a crystalline matrix with self-filled amorphous-like innards

Fig. 3: Atomic-scale analysis and atomic coordination environment of Cu12Sb4S13.

The HAADF STEM images taken along the [1 1 −2] zone-axis of (a) the initial sample at ambient condition and (b) the sample treated by high pressure. The top panel of (a) shows the (1 1 1) planes that are related to the Cu2 atoms. The inset of (b) shows the corresponding select area electron diffraction. The retained electrons diffraction spots with the broad diffuse background confirm the hybrid structure. Intensity-scan profiles taken from the (1 1 1) plane with Sb/Cu atom columns of (c) the initial sample at ambient and (d) the sample treated by high pressure, as indicated by a yellow arrow in (a) and (b). e The near edge region of XAS on the K-edge of Cu for Cu12Sb4S13 at different pressures. f Fourier transform (FT) curves of the EXAFS data of Cu12Sb4S13.

Back to article page