exciton

The right size does not allow them to hold an exciton for long.

The ground state of the exciton is given in analogy to the hydrogen atom.

The exciton entity can be modeled using the particle in the box.

An electron-hole pair is often referred to as an exciton.

An exciton can form when a photon is absorbed by a semiconductor.

In this notation, the diagonal contributions determine the population of excitons.

This is also the typical result of experiments performed on excitons in semiconductors.

The whole exciton can move through the solid.

The absorption of light, generating either electron-hole pairs or excitons.

Consequently, the exciton has slightly less energy than the unbound electron and hole.

With this additional kinetic energy the exciton may lie above the band-gap.

Typically, excitons are observed just below the band gap.

After exciton dissociation, the electron and hole must be collected at contacts.

Specifically, these functions are also used in the analysis of excitons and condensed Rydberg matter.

Excitons are a key element in the functioning of semiconductors and insulators.

Decay of the excitons results in the production of light through spontaneous emission.

The Coulomb interaction can also pair electrons and holes into excitons, as discussed above.

A quantum dot is a semiconductor whose excitons are confined in all three spatial dimensions.

Excitons may be treated in two limiting cases, depending on the properties of the material in question.

One of the materials acts as the photon absorber and exciton donor.

An exciton condensate in a bilayer system has been shown (theoretically) to carry a large current.

Another unusual feature of the ground state excitons is that all primary scattering mechanisms are known quantitatively.

They also have high extinction coefficients, and have shown the possibility of multiple exciton generation.

At this stage, if the first pigment has received an excess of light, the "exciton" perhaps might dissipate the energy as heat.

In condensed matter physics, biexcitons are created from two free excitons.