Extended Data Fig. 6: Diffusion measurements with different exciton densities on the ML MoSe2/t-hBN.
From: Electrostatic moiré potential from twisted hexagonal boron nitride layers
a-c, Normalized pump-probe images on the ML MoSe2/t-hBN with exciton density of ~ 3 × 1011 cm−2 at delay times 0 ps (a), 5 ps (b), and 10 ps (c). The scale bar is 1 μm. d, Line profiles taken along the white dashed lines in (a-c). The solid lines are Gaussian fittings. e-h, Corresponding images and line profiles from the ML MoSe2/t-hBN substrate with exciton density of ~ 2 × 1012 cm−2. The solid lines are Gaussian fittings. The grey dashed lines represent the laser profile at exciton density of ~ 7 × 1011 cm−2.
