The transport of excitation energy in molecular aggregates is of crucial importance for the
function of organic optoelectronic devices and next‐generation solar cells. First, this review …

Detailed studies of the excitation dynamics in photosynthetic pigment-proteins require an
application of a wide range of spectroscopic methods. From the later part of the previous …

Coupling matter excitations to electromagnetic modes inside nano-scale optical resonators
leads to the formation of hybrid light-matter states, so-called polaritons, allowing the …

Light-induced charge transfer from the photoexcited donor to the acceptor is the
fundamental step towards current generation in organic solar cells. Experimental evidence …

In the initial steps of photosynthesis, reaction centers convert solar energy to stable charge-
separated states with near-unity quantum efficiency. The reaction center from purple …

Exciton transport and exciton–exciton interactions in molecular aggregates and polymers
are of great importance in natural photosynthesis, organic electronics, and related areas of …

We propose a novel UV/Vis femtosecond spectroscopic technique, two-dimensional
fluorescence-excitation (2D-FLEX) spectroscopy, which combines spectral resolution during …

Time-resolved spectroscopy is commonly used to study diverse phenomena in chemistry,
biology, and physics. Pump–probe experiments and coherent two-dimensional (2D) …

The dynamic Stokes shift is a common means for characterizing ultrafast solvation dynamics
of electronically excited states. Here we extract the excitation frequency-dependent dynamic …

Two-dimensional Fourier transform spectroscopy is a promising technique to study ultrafast
molecular dynamics. Similar to transient absorption spectroscopy, a more complete picture …