Photonic band gap in 1D multilayers made by alternating SiO2 or PMMA with MoS2 or WS2 monolayers

• We propose one-dimensional photonic crystals containing monolayers of MoS2 or WS2.
• We have the wavelength dependent refractive indexes of all the employed materials.
• A clear photonic band gap arises in photonic crystals with monolayers of MoS2 or WS2.

Atomically thin molybdenum disulfide (MoS2) and tungsten disulfide (WS2) are very interesting two dimensional materials for optics and electronics. In this work we show the possibility to obtain one-dimensional photonic crystals consisting of low-cost and easy processable materials, as silicon dioxide (SiO2) or poly methyl methacrylate (PMMA), and of MoS2 or WS2 monolayers. We have simulated the transmission spectra of the photonic crystals using the transfer matrix method and employing the wavelength dependent refractive indexes of the materials. This study envisages the experimental fabrication of these new types of photonic crystals for photonic and light emission applications.