Trace of impurity element that is added to material to alter its electrical or optical properties
Not to be confused with doping in sport.
This article is about elemental impurities. For the fictional characters in Kamen Rider W, see List of Kamen Rider W characters § Dopant.
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A dopant (also called a doping agent) is a small amount of a substance added to a material to alter its physical properties, such as electrical or optical properties. The amount of dopant is typically very low compared to the material being doped.
When doped into crystalline substances, the dopant's atoms get incorporated into the crystal lattice of the substance. The crystalline materials are frequently either crystals of a semiconductor such as silicon and germanium for use in solid-state electronics, or transparent crystals for use in the production of various laser types; however, in some cases of the latter, noncrystalline substances such as glass can also be doped with impurities.
In solid-state electronics using the proper types and amounts of dopants in semiconductors is what produces the p-type semiconductors and n-type semiconductors that are essential for making transistors and diodes.
A dopant (also called a doping agent) is a small amount of a substance added to a material to alter its physical properties, such as electrical or optical...
Dopant activation is the process of obtaining the desired electronic contribution from impurity species in a semiconductor host. The term is often restricted...
Random dopant fluctuation (RDF) is a form of process variation resulting from variation in the implanted impurity concentration. In MOSFET transistors...
Narumi Tantei Jimusho) is a private detective agency that specializes in Dopant activity and was founded by Sokichi Narumi, who was murdered while he and...
intrinsic semiconductor. In an extrinsic semiconductor it is these foreign dopant atoms in the crystal lattice that mainly provide the charge carriers which...
conductive channel does not exist naturally within the transistor. With no VGS, dopant ions added to the body of the FET form a region with no mobile carriers...
semiconductor or i-type semiconductor, is a semiconductor without any significant dopant species present. The number of charge carriers is therefore determined by...
materials chosen as suitable dopants depend on the atomic properties of both the dopant and the material to be doped. In general, dopants that produce the desired...
was not obtained until 1953. At present, ytterbium is mainly used as a dopant of stainless steel or active laser media, and less often as a gamma ray...
with a monoclinic crystalline structure, is the mineral baddeleyite. A dopant[clarification needed] stabilized cubic structured zirconia, cubic zirconia...
fluctuations and Rc represents Rayleigh scattering on dopant concentration fluctuations. Dopants, such as GeO2 or F, are used to create the refractive...
interested parties. These individuals use the Gaia Memories to become Dopants, committing crimes with the police force powerless to stop them. To make...
behind an immobile positively charged donor (dopant) on the N side and negatively charged acceptor (dopant) on the P side. The region around the p–n junction...
several elements to change the color of the crystal. A list of specific dopants and colors produced by their addition can be seen below. Purple cubic zirconia...
corundum crystal. In semiconductors, a special type of impurity, called a dopant, drastically changes the crystal's electrical properties. Semiconductor...
they transform into Kamen Rider W, who protects the city of Fuuto from Dopants, monsters created by Gaia Memories. They solve cases alongside their boss...
additive for halogen-containing flame retardants. Antimony is used as a dopant in semiconductor devices. Antimony is a member of group 15 of the periodic...
(for example, in car batteries and ammunition). Arsenic is a common n-type dopant in semiconductor electronic devices. It is also a component of the III–V...
Wiktionary, the free dictionary. Doping may refer to: Doping, adding a dopant to something Doping (semiconductor), intentionally introducing impurities...
in the story arc title has a double meaning: the name of a Kamen Rider, Dopant, or an important character featured in the story arc and another word that...
expanding from a single point and following the planar crystal faces. Chemical dopants can be added to create artificial versions of the ruby, and all the other...
in the conduction band increases. In extrinsic (doped) semiconductors, dopant atoms increase the majority charge carrier concentration by donating electrons...
respectively. The dopant concentration in commonly used Nd:YAG crystals usually varies between 0.5 and 1.4 molar percent. Higher dopant concentration is...
As sodium perborate, it is used as a bleach. A small amount is used as a dopant in semiconductors, and reagent intermediates in the synthesis of organic...
perfect ruby), in which case it will be suspected of being artificial. Dopants are added to some manufactured rubies so they can be identified as synthetic...
substitution of carbon atoms in the nanotube wall by boron or nitrogen dopants leads to p-type and n-type behavior, respectively, as would be expected...
such as phosphorus, arsenic, or antimony introduces one extra electron per dopant and these may then be excited into the conduction band either thermally...
active part of the ruby is the dopant, which consists of chromium ions suspended in a synthetic sapphire crystal. The dopant often comprises around only...
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