Optical absorption and transmission in a molybdenum disulfide monolayer (CROSBI ID 234155)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Rukelj, Zoran ; Štrkalj, Antonio ; Despoja, Vito
engleski
Optical absorption and transmission in a molybdenum disulfide monolayer
Our recently proposed theoretical formulation [presented in D. Novko et al., Phys. Rev. B 93, 125413 (2016)] is used to study optical absorption and transmission in molybdenum disulfide (MoS2 ) monolayer as a function of incident photon energy and angle. The investigation is not focused on exploration of well-documented spin-orbit split excitons around optical absorption onset, but rather on the most intensive features in absorption spectrum in the visible and near-ultraviolet photon energy range (1.7–4 eV). It is shown that three most intensive peaks, at 2.7, 3.1, and 3.7 eV, result from transitions between Mo(d) and S(p) valence and conduction bands and that the character of their charge/current density fluctuations is intrinsically in plane, located in the molybdenum plane. This also implies that MoS2 monolayer is completely transparent when illuminated by grazing incidence p-polarized light. The validity of the presented results is supported by our effective two-band tight-binding model and finally by good agreement with some recent experimental results
molybdenum disulfide ; optical absorption ; transmission
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Podaci o izdanju
94 (11)
2016.
115428-115439
objavljeno
2469-9950
2469-9969
10.1103/PhysRevB.94.115428