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- Charge_carrier abstract "In physics, a charge carrier is a particle free to move, carrying an electric charge, especially the particles that carry electric charges in electrical conductors. Examples are electrons, ions and holes. In a conducting medium, an electric field can exert force on these free particles, causing a net motion of the particles through the medium; this is what constitutes an electric current. In different conducting media, different particles serve to carry charge: In metals, the charge carriers are electrons. One or two of the outer valence electrons from each atom is able to move about freely within the crystal structure of the metal. The free electrons are referred to as conduction electrons, and the cloud of free electrons is called a Fermi gas.In electrolytes, such as salt water, the charge carriers are ions, atoms or molecules that have gained or lost electrons so they are electrically charged. Atoms that have gained electrons so they are negatively charged are called anions, atoms that have lost electrons so they are positively charged are called cations. Cations and anions of the dissociated liquid also serve as charge carriers in melted ionic solids (see e.g. the Hall–Héroult process for an example of electrolysis of a melted ionic solid.) Proton conductors are electrolytic conductors employing positive hydrogen ions as carriers.In a plasma, an electrically charged gas which is found in electric arcs through air, neon signs, and the sun and stars, the electrons and cations of ionized gas act as charge carriers. It carries external electrons which are found in certain ionic lattices such as copper.In a vacuum, free electrons can act as charge carriers. These are sometimes called cathode rays. In a vacuum tube, the mobile electron cloud is generated by a heated metal cathode, by a process called thermionic emission. In semiconductors (the material used to make electronic components like transistors and integrated circuits), in addition to electrons, the travelling vacancies in the valence-band electron population (called "holes"), act as mobile positive charges and are treated as charge carriers. Electrons and holes are the charge carriers in semiconductors.It can be seen that in some conductors, such as ionic solutions and plasmas, there are both positive and negative charge carriers, so an electric current in them consists of the two polarities of carrier moving in opposite directions. In other conductors, such as metals, there are only charge carriers of one polarity, so an electric current in them just consists of charge carriers moving in one direction.".
- Charge_carrier wikiPageID "488140".
- Charge_carrier wikiPageRevisionID "597806072".
- Charge_carrier hasPhotoCollection Charge_carrier.
- Charge_carrier subject Category:Charge_carriers.
- Charge_carrier subject Category:Particle_physics.
- Charge_carrier type Carrier109897696.
- Charge_carrier type CausalAgent100007347.
- Charge_carrier type ChargeCarriers.
- Charge_carrier type LivingThing100004258.
- Charge_carrier type Object100002684.
- Charge_carrier type Organism100004475.
- Charge_carrier type Person100007846.
- Charge_carrier type PhysicalEntity100001930.
- Charge_carrier type Traveler109629752.
- Charge_carrier type Whole100003553.
- Charge_carrier type YagoLegalActor.
- Charge_carrier type YagoLegalActorGeo.
- Charge_carrier comment "In physics, a charge carrier is a particle free to move, carrying an electric charge, especially the particles that carry electric charges in electrical conductors. Examples are electrons, ions and holes. In a conducting medium, an electric field can exert force on these free particles, causing a net motion of the particles through the medium; this is what constitutes an electric current.".
- Charge_carrier label "Charge carrier".
- Charge_carrier label "Ladungsträger (Physik)".
- Charge_carrier label "Nośniki ładunku".
- Charge_carrier label "Portador de carga".
- Charge_carrier label "Portador de carga".
- Charge_carrier label "Portatore di carica".
- Charge_carrier label "Porteur de charge".
- Charge_carrier label "Носители заряда".
- Charge_carrier label "حامل الشحنة".
- Charge_carrier label "载流子".
- Charge_carrier label "電荷担体".
- Charge_carrier sameAs Nosič_náboje.
- Charge_carrier sameAs Ladungsträger_(Physik).
- Charge_carrier sameAs Portador_de_carga.
- Charge_carrier sameAs Porteur_de_charge.
- Charge_carrier sameAs Portatore_di_carica.
- Charge_carrier sameAs 電荷担体.
- Charge_carrier sameAs 전하_운반자.
- Charge_carrier sameAs Nośniki_ładunku.
- Charge_carrier sameAs Portador_de_carga.
- Charge_carrier sameAs m.02ghln.
- Charge_carrier sameAs Q865807.
- Charge_carrier sameAs Q865807.
- Charge_carrier sameAs Charge_carrier.
- Charge_carrier wasDerivedFrom Charge_carrier?oldid=597806072.
- Charge_carrier isPrimaryTopicOf Charge_carrier.