Singlet fission is a photophysical reaction in which a singlet excited electronic state splits
into two spin-triplet states. Singlet fission was discovered more than 50 years ago, but the …

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 electronic properties of finite-sized graphene fragments are strongly dependent on their
topological structures. The existence of two or more extended zigzag edges could lead to …

Open-shell molecules such as radicals, carbenes, and electronically excited-state molecules
exhibit high energies, and thus, in general, they are quite reactive. 1 The short-lived species …

Experimental and theoretical investigations have revealed that the chemical and physical
properties of graphene are crucially determined by their topological structures. Therefore …

Most organic semiconductors have closed-shell electronic structures, however, studies have
revealed open-shell character emanating from design paradigms such as narrowing the …

Low band gap (Eg< 1.5 eV) polycyclic hydrocarbons have become one of the most important
types of materials for many applications, for example, as semiconductors in organic field …

Conspectus Researchers have studied polycyclic aromatic hydrocarbons (PAHs) for more
than 100 years, and most PAHs in the neutral state reported so far have a closed-shell …

In this Feature Article, we highlight our recent efforts toward stable open-shell singlet
diradicaloids and polyradicaloids. A brief review on the historical works in the area is …

Organic materials with radical characteristics are gaining increasing attention, due to their
potential implications in highly efficient utilization of solar energy. Manipulating …