These dark excitons are uncoupled to light yet still able to interact with the polaritons. "Whenever the polaritons are formed in experiments, they tend to be accompanied by a substantial ...

John J Hopfield, who recently won the 2024 Nobel Prize in Physics for his pioneering contributions to neural networks and ...

That is made possible by singlet fission, a photophysical process in molecules and molecular aggregates whereby a singlet exciton generated by irradiation splits into two triplet excitons.

You're only as strong as your weakest link, and "dark excitons" are slowing things down for optoelectronic devices, such as ...

Singlet fission (SF) is an exciton amplification phenomenon in which two triplet excitons are generated from a singlet exciton produced by the absorption of a single photon in chromophores. A team of ...

We have been studying so-called indirect excitons. For a direct exciton in a quantum well (QW), both an electron and a hole are confined in the same QW. For an indirect exciton, however ...

In organic molecules, an exciton is a particle bound pair of an electron (negative charge) and its hole (positive charge). They are held together by Coulombic attraction and can move within molecular ...

Excitons are electron-hole pairs that are bound together by Coulomb attraction. In nanomaterials, the confinement of electrons and holes leads to an increase in the binding energy of excitons. This ...

Singlet fission (SF) is a process where an exciton is amplified, and two triplet excitons are generated from a singlet exciton. This is caused by the absorption of a single particle of light ...