The electronic excited states of molecular aggregates and their photophysical signatures
have long fascinated spectroscopists and theoreticians alike since the advent of Frenkel …

Organic (opto) electronic materials have received considerable attention due to their
applications in thin-film-transistors, light-emitting diodes, solar cells, sensors, photorefractive …

Conspectus The transport and photophysical properties of organic molecular aggregates,
films, and crystals continue to receive widespread attention, driven mainly by expanding …

The exciton band dispersion in π-stacks of conjugated organic chromophores is a critical
factor in determining the photophysical response and transport properties. In such stacks …

Four well-defined π-stacks of perylene bisimide (PBI) dyes were obtained in solution by
covalent linkage of two chromophores with spacer units of different length and sterical …

Supramolecular assembly of organic dye compounds with J-aggregation leads to a red-
shifted absorption spectrum that greatly facilitates the construction of near-infrared (NIR) …

The spectroscopic differences between J and H-aggregates are traditionally attributed to the
spatial dependence of the Coulombic coupling, as originally proposed by Kasha. However …

Abstract Exciton–exciton annihilation (EEA), an important loss channel in optoelectronic
devices and photosynthetic complexes, has conventionally been assumed to be an …

We demonstrate direct evidence of photoinduced through‐space intervalence charge
transfer (IVCT) between two cofacially arranged redox‐active pairs in metal–organic …

Coupling among chromophores in molecular assemblies is responsible for phenomena
such as resonant energy transfer and intermolecular charge transfer. These processes are …