Fig. 5: Electron–phonon scatterings in mono- and bilayer MoSe2 and WS2. | Nature Communications

Fig. 5: Electron–phonon scatterings in mono- and bilayer MoSe2 and WS2.

From: Direct probing of phonon mode specific electron–phonon scatterings in two-dimensional semiconductor transition metal dichalcogenides

Fig. 5

a, b DFPT-calculated phonon dispersions and phonon density of states of freestanding monolayer MoSe2 (a) and WS2 (b). c–f dG/dVb evolutions as a function of energy in mono- and bilayer MoSe2 and WS2 tunnel devices. The IETS spectra were taken at T = 0.45 K with an excitation voltage of Vpp = 0.5 mV. The experimentally identified single phonon-mode energies are marked with solid and dotted colored arrows, and the two-phonon electron–phonon scatterings are indicated with vertical tick marks.

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