Abstract
Molybdenum disulphide (MoS2) is a layered 2D semiconductor material with a tunable optical bandgap. Its optoelectrical properties make it a good choice for use in 2D devices, such as single-photon emitters. In this study, we investigated the properties of thin layers of MoS2 deposited on a silicon (Si) substrate. MoS2 flakes were passivated and transferred to a particular spot on the substrate by employing a dry mechanical technique. With the assumption that incorporating nematic liquid crystal 5CB on the surface of MoS2 can produce a reconfigurable strain (such as compressive or tensile), then investigating whether 5CB will respond differently or even in the same way with planar aligned molecules. To create a single photon emitter from a 5CB nematic liquid crystal, physical defects in MoS2 must be introduced. The atomic thickness and structural properties of the transferred flake were determined using Raman Spectroscopy. 5CB has increased the angle dependence of A1g and E2g mode in polyvinyl alcohol planar cells. 5CB nematic liquid altered the optical properties of MoS2 and produced compressive strain inside the lattice structure. Our theoretically anticipated model fits the experimental data with reasonable precision.
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