Fig. 1. HRTEM and STEM demonstrating epitaxial MoS₂/Au{111} moiré.

a Schematic of epitaxially aligned Au deposited on suspended MoS₂ supported on a SiN_x TEM grid. Orange atoms represent Au, yellow S, and purple Mo. The SiN_x membrane is shown in dark blue. b Reciprocal space model and experimental selected area electron diffraction pattern of the Au {111} zone aligned on MoS₂ {0001}, with weak intensity ¹/₃{422}_Au spots (see text) aligned with ${\left\{10\overline{1}0\right\}}_{{\mathrm{MoS}}_2}$ and higher intensity {220}_Au spots aligned with ${\left\{2\overline{11}0\right\}}_{{\mathrm{MoS}}_2}$. Orange dots represent frequencies from Au crystal planes, while purple represent frequencies from MoS₂ crystal planes. c HRTEM image of Au nanoisland on MoS₂, showing apparent 18 Å-period moiré pattern. Scale bar, 40 Å. d High angle annular dark field (HAADF) STEM image. Scale bar, 80 Å. Coalescence boundaries are marked by blue arrows.