Over the past few decades, coherent broadband spectroscopy has been widely used to
improve our understanding of ultrafast processes (eg, photoinduced electron transfer, proton …

Photosynthesis begins with light harvesting, where specialized pigment–protein complexes
transform sunlight into electronic excitations delivered to reaction centres to initiate charge …

The origin and yield of charges in neat conjugated polymers has long been controversial. In
this paper, we review the body of literature that has been created over the past three …

The photochemistry and aggregation properties of methylene blue (MB) lead to its popular
use in photodynamic therapy. The facile formation of strongly coupled “face-to-face” H …

Conspectus The role of coherences, or coherently excited superposition states, in complex
condensed-phase systems has been the topic of intense interest and debate for a number of …

Concurrence of the vibrational coherence and ultrafast electron transfer has been observed
in polymer/fullerene blends. However, it is difficult to experimentally investigate the role that …

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 …

Broadband transient absorption and two-dimensional electronic spectroscopy (2DES)
studies of methylene blue in aqueous solution are reported. By isolating the coherent …

Boron-dipyrromethene (BODIPY) chromophores have a wide range of applications,
spanning areas from biological imaging to solar energy conversion. Understanding the …

Efficient organic photovoltaics (OPVs) require broadband charge photogeneration with near-
unity quantum yield. This can only be achieved by exploiting all pathways that generate …