Fig. 1: Growth of twisted bilayer MoS2 (TB-MoS2).
From: Reconfiguring nucleation for CVD growth of twisted bilayer MoS2 with a wide range of twist angles
a Illustration of the chemical vapor deposition (CVD) setup for the synthesis of TB-MoS2. b Schematic atomic configuration of TB-MoS2 with a twist angle due to a relative lattice alignment between two layers. c, d Typical bright field optical microscopy (BF-OM) of 0° and 95.3°-TB-MoS2, the green and red circles indicate the top and bottom layers, respectively. e, f Polar plots of parallel components of second harmonic generations (SHG) intensity of 0°-TB-MoS2 and 95.3°-TB-MoS2. The raw data and corresponding fitted curves of the monolayer (greed) and TB-MoS2 (red) are measured from the circles area in (c) and (d), respectively. The intensity has been normalized. g BF-OM images of the as-grown TB-MoS2 with twist angles from 0 to 120°. Scale bars: 10 μm in (c), (d), and (g).
