Fig. 4: Hot electron doping and density.
From: Bandgap control in two-dimensional semiconductors via coherent doping of plasmonic hot electrons
a Schematic illustration of the overall relaxation scenario after pulsed optical excitation on the PC-WS2 systems, where the yellow oscillating dashed curve stands for repeated hot electron population in lattice; dotted lines above correspond to the time durations of different relaxation processes; hν refers to energy of the pump pulse; b simulated intensity distribution \({\left|{\bf{E}}/{{\bf{E}}}_{0}\right|}^{2}\) in a single sphere-cap unit (XZ cross-section at middle of the sphere) at the frequency of 2.05 eV, together with a schematic of the PC-WS2 sample; please note that the WS2 ML is partially suspended at interstices between two Ag caps, but not fully covering the metal surface; detailed morphology can be referred to our previous work15; c calculated hot electron density along the curved WS2 surface as a function of distance along the projected x-direction (at the same cross-section as in b).
