Solar energy is an ample renewable energy resource, with photovoltaic (PV) technology
enabling a direct route from light to electricity. Currently, PVs are limited in photon …

The exciton, an excited electron–hole pair bound by Coulomb attraction, plays a key role in
photophysics of organic molecules and drives practically important phenomena such as …

A spin-flip from a triplet to a singlet excited state, that is, reverse intersystem crossing (RISC),
is an attractive route for improving light emission in organic light-emitting diodes, as shown …

Triplet states have been widely studied in phosphorescent molecules, lanthanide complexes
and triplet–triplet annihilation systems, in which they have a critical role in energy transfer …

In order to realize a clean energy society by using renewable energies, high-performance
solar cells are a very attractive proposition. The development of high-performance solar cells …

Manipulation of long‐lived triplet excitons in organic molecules is key to applications
including next‐generation optoelectronics, background‐free bioimaging, information …

Large Stokes shift fast emitters show a negligible reabsorption of their luminescence, a
feature highly desirable for several applications such as fluorescence imaging, solar-light …

As a key contender in the field of photovoltaics, third‐generation thin‐film perovskite solar
cells (PSCs) have gained significant research and investment interest due to their superior …

Singlet fission (SF) is a photophysical downconversion pathway, in which a singlet excitation
transforms into two triplet excited states. As such, it constitutes an exciton multiplication …

The functional properties of organic semiconductors are defined by the interplay between
optically bright and dark states. Organic devices require rapid conversion between these …