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

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 …

A theory for polarized absorption in crystalline oligoacenes is presented, which includes
Frenkel exciton coupling, the coupling between Frenkel and charge-transfer (CT) excitons …

The properties of polaritons in J-aggregate microcavities are explored using a Hamiltonian
which treats exciton-vibrational coupling and exciton-photon coupling on equal footing …

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

The polarized absorption spectra of crystalline pentacene are obtained for excitation normal
to the ab herringbone plane by measuring transmitted light in ultrathin crystals. The spectral …

A theory describing the spatial coherence length of polarons in disordered conjugated
polymer films is presented, revealing a simple relationship between oscillator strength of the …

Photoactive organic and hybrid organic–inorganic materials such as conjugated polymers,
covalent organic frameworks (COFs), metal–organic frameworks (MOFs), and layered …

A theory describing vibronic coupling in direct band gap, one-dimensional semiconductors
is developed to account for the photophysical properties of isolated, defect-free conjugated …

Infrared absorption of positively charged polarons in conjugated polymer chains and π-
stacked aggregates is investigated theoretically, employing a Holstein-based Hamiltonian …