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 …

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 …

Abstract Azulene 1, pentalene 2, and heptalene 3 are classical nonalternant hydrocarbons.
Their fascinating π-frameworks, consecutive arrangements of odd-membered carbocycles …

Recently, Baird (anti) aromaticity has been referred to as a description of excited-state (anti)
aromaticity. With the term of Baird's rule, recent studies have intensively verified that the …

Molecules with inversion of the singlet and triplet excited‐state energies are highly
promising for the development of organic light‐emitting diodes (OLEDs). To date …

Triplet–triplet annihilation upconversion (TTA-UC) is an unconventional photophysical
process that yields high-energy photons from low-energy incident light and offers pathways …

Singlet fission (SF) materials hold the potential to increase the power conversion efficiency
of solar cells by reducing the thermalization of high-energy excited states. The major hurdle …

The shape of the lowest singlet excited-state (S1) energy profile is of primary importance in
photochemistry and related materials science areas. Here we demonstrate a new approach …

Aromaticity, in general, can promote a given reaction by stabilizing a transition state or a
product via a mobility of π electrons in a cyclic structure. Similarly, such a promotion could …

Aromaticity is a fundamental concept in chemistry, underpinning the properties and reactivity
of many organic compounds and materials. The ability to easily and accurately discern …