Introduction Click to copy section linkSection link copied! Two-dimensional (2D) transition metal dichalcogenides (TMDCs) are a class of layered materials renowned for their remarkable optical and electronic properties, making them some of the most studied materials of the past decade. (1,2) Semiconducting TMDCs, such as MoS2 and WS2, exhibit an indirect-to-direct bandgap transition when thinned down to a monolayer, leading to a strong photoluminescence (PL) response in the visible range.