Fig. 2: The formation process of Hf-MOLs. | Nature Communications

Fig. 2: The formation process of Hf-MOLs.

From: Observation of formation and local structures of metal-organic layers via complementary electron microscopy techniques

Fig. 2

a Snapshots from Supplementary Movie 3 showing the Hf-clusters assembled into a hexagonal arrangement. b HRTEM image of Hf-MOLs after baking the growth solution at 120 °C for 30 min (early-stage product). c Enlarged image (left panel) of the red square area shown in b, showing the bulk crystalline structure in more detail; the corresponding FFT (middle panel) and IFFT (right panel) images of the red region are also displayed. d Enlarged images (left panel) of the blue square region shown in b, showing the disordered structure of the MOL; the corresponding FFT (middle panel) and IFFT (right panel) images of the blue region are displayed. e Schematic of MOLs formation process depicting the formation of clusters, followed by the aggregation and spontaneous nucleation and growth to form a periodic structure. The red, blue and black atoms represent Hf, O and C, respectively. Scale bars: a 10 nm; b 20 nm. Scale bars of TEM (left panel) and IFFT (right panel) images in c and d are 10 nm. Scale bars of FFT (middle panel) images in c and d are 1 1/nm.

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