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valence band Dictionary Terms
semiconductor
A semiconductor is a type of material that has electrical conductivity between that of a conductor and an insulator. In other words, semiconductors have properties that are intermediate between metals (good conductors of electricity) and insulators...
valence band
In a crystalline substance, the spectral range of states of energy that contains the crystal's binding valence electrons.
acceptor
Impurity in a semiconductor or any other electroluminescent device capable of inducing hole conduction and accepting a...
band-to-band photoluminescence
The emission of a photon by the return of an excited carrier from the conduction band to the valence band of a semiconductor...
internal photoeffect
The effect in which photons are absorbed and excite the electrons; the electrons move from the valence band to the...
exciton
An exciton is a quasiparticle that represents the bound state of an electron and a hole in a solid-state material, typically...
bandgap
In semiconductor physics, the term bandgap refers to the energy range in a material where no electronic states are allowed....
recombination radiation
The radiation emitted in semiconductors when electrons in the conduction band recombine with holes in the valence band. If...
light-emitting diode
An LED, or light emitting diode, is a semiconductor device that emits light when an electric current passes through it. LEDs...
(9 results found)
May 2024
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