The Electronic Band Structure and Linear Optical Properties of Bilayer MoS2 and MoSe2

We have performed first principle pseudopotential calculations of the electronic band structure and linear optical properties of bilayer MoSe2 and MoSe2 using density functional-Hartree-Fock theory. Our results reveal that both bilayer MoS2 and MoSe2 are semiconductors with direct band gap. The optical spectra for both materials are similar and they show the two major excitonic transition which is a feature of M-CH2.Journal of the Nigerian Association of Mathematical Physics, Volume 20 (March, 2012), pp 293 – 30