Two-dimensional MoS2 for photonic applications

Two-dimensional molybdenum disulfide (MoS2) has garnered significant interest in optoelectronics due to its direct band gap, tunable optical properties and the potential for realizing the van der Waals heterostructures. This article provides a comprehensive overview of 2D MoS2 and its applications in photonics. We begin by discussing recent advancements in the bottom-up synthesis of MoS2 using chemical vapor deposition, focusing on novel approaches using liquid molybdenum precursors. Then, we review the latest developments in light-based devices leveraging MoS2, including light-emitting diodes, photodetectors, waveguides, optical cavities and single-photon sources. By summarizing recent achievements, this review provides insights into the prospects offered by MoS2 in photonics.