Ultrafast all‐optical switching, possessing the unique function of light controlling light, is an
essential component of on‐chip ultrafast optical connection networks as well as integrated …

Singlet exciton fission is the process in conjugated organic molecules bywhich a
photogenerated singlet exciton couples to a nearby chromophore in the ground state …

Understanding the charge-separation mechanism in organic photovoltaic cells (OPVs) could
facilitate optimization of their overall efficiency. Here we report the time dependence of the …

Due to its ability to offset thermalization losses in photoharvesting systems, singlet fission
has become a topic of research interest. During singlet fission, a high energy spin-singlet …

Singlet fission, the process of forming two triplet excitons from one singlet exciton, is a
characteristic reserved for only a handful of organic molecules due to the atypical energetic …

We use transient absorption spectroscopy to demonstrate that the dynamics of singlet
exciton fission in tetracene are independent of temperature (10–270 K). Low-intensity, broad …

Singlet exciton fission allows the fast and efficient generation of two spin triplet states from
one photoexcited singlet. It has the potential to improve organic photovoltaics, enabling …

Harvesting long-lived free triplets in high yields by utilizing organic singlet fission materials
can be the cornerstone for increasing photovoltaic efficiencies potentially. However, except …

The dependence of the thin film morphology and excited-state dynamics for the low-
bandgap donor–acceptor copolymer poly [2, 6-(4, 4-bis-(2-ethylhexyl)-4 H-cyclopenta [2, 1 …

The conversion of photoexcitations into charge carriers in organic solar cells is facilitated by
the dissociation of excitons at the donor/acceptor interface. The ultrafast timescale of charge …