Fig. 2: Te nanomesh growth.
From: Van der Waals nanomesh electronics on arbitrary surfaces

a Optical images of Te nanomeshes grown on sapphire with different growth durations, showing nucleation, lateral growth, and self-welding steps. b Transmission electron microscopy (TEM) images of Te nanomeshes with distinct self-welding regions. c Surface energies of different substrates used in this work and corresponding NW densities of Te nanomeshes after growth. The corresponding references could be found in Supplementary Table 1. The inset shows photographs of water droplets on different substrates. Scale bar represents 2 mm. d Surface energies of different substrates before/after surface treatments and the corresponding NW densities of Te nanomeshes after growth. The inset shows photographs of water droplets on different substrates. Scale bar represents 2 mm. e Schematic illustration and f scanning electron microscopy (SEM) images of the self-welding process of Te nanomeshes with different growth duration times.