Figure 1: Scanning electron microscopy (SEM) secondary image and CL spectroscopy and monochromatic maps of a typical single exfoliated multilayer MoS2 flake.
From: Novel near-infrared emission from crystal defects in MoS2 multilayer flakes

(a) Secondary electron SEM image of the MoS2 micrometric flake. (b) CL spectrum of the MoS2 flake (solid line) compared with the spectrum of molybdenite as a reference (dashed line). (c,d) Monochromatic maps at 0.75 and 1.07 eV, respectively.