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In an exciton, the electron and the hole are bound together by an electric attraction-known as the Coulomb force - in a fashion very similar to that of an electron and a positron in a hydrogen atom.— Nano Tech Wire
These QDs have dimensions smaller than the Bohr diameter of the exciton (around 5.4 nm) and exhibit highly efficient "above-gap" luminescence thanks to quantum confinement.— optics.org all content
However, the accurate determination of exciton coupling in important biological molecules is difficult because inhomogeneous broadening smears out the monomer interaction.— Proceedings of the National Academy of Sciences current issue
These sum rules are derived by establishing a straightforward relationship between integral characteristics of absorption and circular dicroism spectra, and exciton coupling.— Proceedings of the National Academy of Sciences current issue
This information can be accessed by extracting an optical interaction of monomers, i.e., their exciton coupling, from experimental data.— Proceedings of the National Academy of Sciences current issue
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