radiative recombination time
1Non-radiative life time — is the average time before an electron in the conduction band of a semiconductor recombines with a hole non radiatively. It is an important parameter in optoelectronics where radiative recombination is required to produce a photon; if the non… …
2Coronal radiative losses — In astronomy and in astrophysics, for radiative losses of the solar corona, it is meant the energy flux irradiated from the external atmosphere of the Sun (traditionally divided into chromosphere, transition region and corona), and, in particular …
3Direct and indirect band gaps — In semiconductor physics, the band gap of a semiconductor is always one of two types, a direct band gap or an indirect band gap. The band gap is called direct if the momentum of electrons and holes is the same in both the conduction band and the… …
4Carrier lifetime — A definition in semiconductor physics, carrier lifetime is defined as the average time it takes for a minority carrier to recombine. The process through which this is done is typically known as minority carrier recombination. The energy released… …
5Indirect bandgap — In semiconductor physics, an indirect bandgap is a bandgap in which the minimum energy in the conduction band is shifted by a k vector relative to the valence band. The k vector difference represents a difference in momentum.Semiconductors that… …
6Spontaneous emission — is the process by which a light source such as an atom, molecule, nanocrystal or nucleus in an excited state undergoes a transition to the ground state and emits a photon. Spontaneous emission of light or luminescence is a fundamental process… …
7ionosphere and magnetosphere — ▪ atmospheric science Introduction regions of Earth s (Earth) atmosphere in which the number of electrically charged particles ions (ion) and electrons (electron) are large enough to affect the propagation of radio waves (electromagnetic… …
8Optoelectronics — Not to be confused with electro optics. Optoelectronics is the study and application of electronic devices that source, detect and control light, usually considered a sub field of photonics. In this context, light often includes invisible forms… …
9Electroluminescence — Animation of LCD, both unlit and with electroluminescent backlight switched on …
10nanotechnology — /nan euh tek nol euh jee, nay neuh /, n. any technology on the scale of nanometers. [1987] * * * Manipulation of atoms, molecules, and materials to form structures on the scale of nanometres (billionths of a metre). These nanostructures typically …
