Our partner from UniBw M has published an article titled “Orientation Dependent Interlayer Coupling in Organic–Inorganic Heterostructures” in Advanced Functional Materials. This study examines organic-inorganic 2D heterostructures that combine the strong optical absorption of organic molecules with the exciton-dominated optical properties of transition metal dichalcogenides such as MoS₂. By investigating the interface between perylene derivatives and bilayer MoS₂, the researchers shed light on how electronic band alignment influences optical behavior. The research identifies variations in the orientation of perylene molecules on the MoS₂ surface using Raman spectroscopy and scanning probe microscopy. Low-temperature optical spectroscopy reveals that the formation of interlayer excitons depends on the orientation of the perylene molecules. Power-dependent photoluminescence measurements further show that under high excitation power, a perpendicular orientation of perylene molecules leads to electron accumulation in MoS₂, while a parallel alignment enhances the population of organic-inorganic interlayer excitons. These findings provide important insights into optimizing organic-inorganic heterostructures for use in optoelectronic and excitonic devices.
Congratulations to UniBw M for this outstanding contribution to the 2D-PRINTABLE project!
You can find all the 2D-PRINTABLE publications here.
