Fig. 1: Unzipping of 2D MX2.
From: Longitudinal unzipping of 2D transition metal dichalcogenides
SEM image of (a) unzipped MoS2 after 5 min of ultrasonication displaying the initiation of unzipping from flake edge, (b) Magnified image for unzipped edge and (c) Fully unzipped MoS2 displaying discrete MoS2 NRs. Scale bars, (a, c) 0.5 and (b) 0.1 µm. d, e TEM image of isolated MoS2 NRs. Scale bars, (d) 0.2 and (e) 0.1 µm (f) AFM image of MoS2 NRs. Scale bar, 0.2 µm (g) Plot of NR length as a function of width measured by TEM of more than 400 MoS2 NRs. h STEM image of MoS2 NR. Inset is the lattice image with low beam exposure displaying 2a0xa0 symmetry and Mo terminated zigzag edge structure. Scale bars, 1.5 and 0.15 nm (inset). i Raman spectra of bulk MoS2, 1T’ MoS2 sheets (MoS2 S) and MoS2 NRs.
