Enlightening 2D semiconductor inks

The scalable processing of two-dimensional (2D) semiconductor thin films and superlattices with precisely controlled layer thickness is crucial for the widespread adoption of 2D semiconductors in electronics and optoelectronics. In the May issue of Chem, Xue et al. introduced a meticulous method for producing high-quality photoluminescent 2D semiconductor monolayer inks. They demonstrated the fabrication of not only semiconductor thin films with precisely controlled layer number but also hybrid superlattice thin films with bright visible-light emission through a solution-processable assembly technique. The scalable processing of two-dimensional (2D) semiconductor thin films and superlattices with precisely controlled layer thickness is crucial for the widespread adoption of 2D semiconductors in electronics and optoelectronics. In the May issue of Chem, Xue et al. introduced a meticulous method for producing high-quality photoluminescent 2D semiconductor monolayer inks. They demonstrated the fabrication of not only semiconductor thin films with precisely controlled layer number but also hybrid superlattice thin films with bright visible-light emission through a solution-processable assembly technique. Solution-processable assembly of 2D semiconductor thin films and superlattices with photoluminescent monolayer inksXue et al.ChemFebruary 12, 2024In BriefXue et al. describe a solution-processable layer-by-layer assembly approach for 2D semiconductor thin films with precisely controllable layer and thickness at atomic scale (e.g., 1–10 layers). The key to the precise assembly is the use of high-purity photoluminescent 2D semiconductor monolayer ink materials and the formation of compact monolayer packing within each layer. Alternative deposition of distinct 2D monolayers results in versatile vertical superlattice structures, including the ink-printable and light-emissive MoS2/Ca2Nb3O10 superlattice. Full-Text PDF