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

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 …

Ever since the discovery of dye self-assemblies in nature, there have been tremendous
efforts to exploit biomimetic supramolecular assemblies for tailored artificial photon …

Charge transfer states around the donor–acceptor interface in an organic solar cell
determine the device performance in terms of the open circuit voltage. In the present work …

We demonstrate the successful incorporation of a solution-processable singlet fission
material, 6, 13-bis (triisopropylsilylethynyl) pentacene (TIPS-pentacene), into photovoltaic …

Small‐molecule photovoltaic cells using diindenoperylene (DIP) as a new donor material in
combination with the fullerene C60 as an electron acceptor are demonstrated. In addition to …

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

Using a single-mode Holstein Hamiltonian with through-space excitonic couplings
evaluated quantum mechanically, the absorption, circular dichroism, and …

The optical properties of perylene-based pigments are arising from the interplay between
neutral molecular excitations and charge transfer between adjacent molecules. In the …

Using vibronic exciton theory we evaluate the absorption and CD spectra of lutein and lutein
diacetate aggregates, which have previously been described as card-packed H-aggregates …