29.10.2025 Hybrid excitons: Combining the best of two worlds?

Researchers from Göttingen, Berlin, and Graz discovered a hybrid exciton at a 2D/organic interface that combines the properties of both materials through ultrafast energy transfer.

Faster, more efficient, and more versatile – these are the benchmarks for novel optoelectronic devices that hold the key to future energy and information technologies. Together with researchers from the University of Marburg, Göttingen, the Humboldt University of Berlin, and the TU Graz, we show how ultrafast energy transfer leads to the formation of a hybrid exciton at a 2D/organic heterointerface. At the interface of the two fundamentally different material systems, a new type of exciton is formed that combines the unique properties of both components. The hybrid exciton’s wavefunction exist in several states at once: It can reside solely on one molecule, or it extends across the interface, being partially in both the organic and the 2D semiconductor.

Find the open-access article via the following link:

Bennecke et al., Nature Physics (2025, https://www.nature.com/articles/s41567-025-03075-5)