Lattice Symmetry Governs Spin Dynamics in Supramolecular Assemblies

Synthetic soft materials mimicking biological structures are promising for many applications in fields such as photovoltaics and photocatalysis. For these applications, a deep understanding of charge- and energy-transfer mechanisms is required to build more efficient devices. In this work, we investigate self-assembled 2D supramolecular structures using angle-resolved photoluminescence imaging techniques and decompose the optical transition dipoles in the supramolecular structures. Combining these optical studies with Monte Carlo simulations, we reveal the important role played by lattice symmetry in charge dissociation, transport, and recombination, as well as the exciton spin states.[1] These mechanistic findings have important implications for engineering soft materials towards efficient energy conversion and photocatalytic applications.<br/><br/>[1] R. Emmanuele et al. Advanced Science 2024, 2402932