Photoexcitation Energy Transfer Patterning of 2D Materials with DNA Origami

Hybrid architectures that combine atomically thin semiconductors, such as transition metal dichalcogenides (TMDs), with molecular systems provide a powerful platform for engineering optical properties and controlling photoexcitations. In this work, Förster resonance energy transfer is realized between 2D and molecular excitons. Well-defined hybrid structures are fabricated using lithographic methods together with DNA origami self-assembly, which enables the precise positioning of fluorescent dyes under TMD monolayers. By selecting specific dye molecules, spatial modulation of MoS₂ photoluminescence is achieved, with either enhancement or quenching. Beyond demonstrating controlled energy transfer at the molecular scale, this approach establishes a robust framework for engineering excitonic interactions and offers opportunities for programmable design of nanophotonic and nanoelectronic devices based on 2D materials and their van der Waals heterostructures.