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What is an intrinsic semiconductor and what is an extrinsic semiconductor?
Wiki User
∙ 10y ago
intrinsic semiconductor is an un-doped semiconductor, in which there is no impurities added where as extrinsic semiconductor is a doped semiconductor, which has impurities in it. Doping is a process, involving adding dopant atoms to the intrinsic semiconductor, there by gives different electrical characteristics
Wiki User
∙ 16y ago
Wiki User
∙ 14y agoAnintrinsic semiconductor, also called an undoped semiconductor or i-type semiconductor, is a pure http://www.answers.com/topic/semiconductor without any significant http://www.answers.com/topic/dopant-3 species present. The number of http://www.answers.com/topic/minority-carriers is therefore determined by the properties of the material itself instead of the amount of impurities. In intrinsic semiconductors the number of excited http://www.answers.com/topic/electron and the number of http://www.answers.com/topic/electron-hole-1 are equal: n = p. Examples include http://www.answers.com/topic/silicon and http://www.answers.com/topic/germanium. The conductivity of intrinsic semiconductors can be due to crystal defects or to thermal excitation. In an intrinsic semiconductor the number of http://www.answers.com/topic/electron in the http://www.answers.com/topic/conduction-band is equal to the number of holes in the http://www.answers.com/topic/valence-band. An example is http://www.answers.com/topic/Mercury-ii-cadmium-ii-telluride at room temperature.
An extrinsic semiconductor is a http://www.answers.com/topic/semiconductor that has been doped, that is, into which a http://www.answers.com/topic/dopant-3 has been introduced, giving it different electrical properties than the http://www.answers.com/topic/intrinsic-semiconductor. Doping involves adding dopant atoms to an intrinsic semiconductor, which changes the http://www.answers.com/topic/electron and http://www.answers.com/topic/electron-hole-1 http://www.answers.com/topic/semiconductor of the semiconductor at http://www.answers.com/topic/thermodynamic-equilibrium. Dominant carrier concentrations in an extrinsic semiconductor classify it as either an http://www.answers.com/topic/n-type-semiconductor-2 or http://www.answers.com/topic/n-type-silicon semiconductor. The electrical properties of extrinsic semiconductors make them essential components of many electronic devices.
Wiki User
∙ 10y agointrinsic semiconductor :
semiconductors which are in its extremely pure form are known as intrinsic semiconductor
example : silicon, germanium
extrinsic semiconductor :
when a small amount of doping is added to intrinsic semiconductor it becomes extrinsic semiconductor
Wiki User
∙ 11y agoThose semi conductors in which impurities are missing are known as intrinsic semiconductors. The electrical conductivity of the semiconductor depends upon the total no of electrons shifted to the conduction band from the valence band. This phenomenon is called as intrinsic conductivity.
Wiki User
∙ 11y ago- intrinsic - where the semiconducting properties of the material occur naturally i.e.
they are intrinsic to the material's nature.
- extrinsic - they semiconducting properties of the material are manufactured, by us, to make the material behave in the manner which we require.
s conductor no concentration gradient but in e.s.conductor
there is a concentration gradient.
there is eqal
in conduction property but in extrinsic s.conductors
due to con
centration
gradient
conduction is increased.
drift current + diffusion current both are in extrincic
s.con
but only drift current in intrincis
s conductor
Wiki User
∙ 12y agothe main difference between extrinsic and intrinsic semiconductor is of resistivity. intrinsic semi conductor is pure semi cndctor with no doping while extrinsic semi cnductr z a doped one.
Wiki User
∙ 14y agoWhat is tha extrinsic and intrinsic semiconductors?
Wiki User
∙ 13y agoIntrinsic semiconductor is the pure form of semiconductor. Semiconductor after doping is called Extrinsic semiconductor.
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∙ 9y agoAnswer this question… What is the different between intrinsic and extrinsic semiconductor
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How intrinsic semiconductor can be made into extrinsic semiconductor?
at higher values of temperature the intrinsic carrier concentration become comparable to or greater than doping concentration in extrinsic semiconductors. thus majority and minority carrier concentration increases with increase in temperature and it behaves like intrinsic semiconductor.
Is miscibility a extrinsic or intrinsic?
Extrinsic
Who founded intrinsic and extrinsic motivation?
Skinner
What extrinsic semiconductor is?
Those semiconductors in which some impurity atoms are embedded are known as extrinsic semiconductors.
What is meant by intrinsic semiconductor?
Semiconductor in pure form (i.e. without doping) is called intrinsic or i-type semiconductor. The no of charge carrier in this case is determined by the materials itself only and not by the impurities. In an intrinsic semiconductor number of excited free electron is equal to the number of holes.
How intrinsic semiconductor can be made into extrinsic semiconductor?
at higher values of temperature the intrinsic carrier concentration become comparable to or greater than doping concentration in extrinsic semiconductors. thus majority and minority carrier concentration increases with increase in temperature and it behaves like intrinsic semiconductor.
Is silicon a extrinsic or intrinsic semiconductor?
silicon is intrinsic semiconductor until we add some impurities in it. the impurities are either of group 3 called acceptors which make p type or of group 5 called donors which make n type semiconductor.
What is the difference between intrinsic and extrinsic?
Extrinsic is external; intrinsic is internal.
What is the difference between intrinsic and extrinsic materials?
Intrinsic - A perfect semiconductor (ex: silicon) crystal with no impurities or lattice defects is called an intrinsic semiconductorExtrinsic - an extrinsic material is achieved by introducing impurities into the intrinsic material described above, such as doping silicon with boron atoms, such that the equilibrium carrier concentrations are different from the intrinsic carrier concentration.
Difference between intrinsic and exterinsic semiconductors?
Answer An intrinsic semiconductor is a pure semiconductor. An extrinsic semiconductor is doped with trivalent of pentavalent impurities. semiconductors allow only a little amount of electricity to pass through them.they are of two types - n type and p typeAre made of the semiconductor material in its purest from
Is miscibility a extrinsic or intrinsic?
Extrinsic
Is pressure a extrinsic or intrinsic?
Intrinsic
Which is a good conductor (Extrinsic or Intrinsic)?
Extrinsic
Difference between intrinsic and extrinsic feedback?
Intrinsic feedback comes from within the individual, such as the feeling of accomplishment from completing a task. Extrinsic feedback is information provided by an external source, like a teacher or coach, to guide performance or skill development.
What is extrinsic and intrinsic?
A semiconductor material with electrical properties essentially characteristic of ideal pure crystal. Essentially silicon or germanium crystal with no measurable impurities
Is extrinsic a physical property?
Extrinsic is not a property; a property may be extrinsic or intrinsic.
Why does an extrinsic semiconductor behave like an intrinsic semiconductor at high temperature?
With the increase in temperature, the concentration of minority carriers starts increasing. Eventually, a temperature is reached called the critical temperature (85° C in case of germanium and 200° C in case of silicon) when the number of covalent bonds that are broken is very large and the number of holes is approximately equal to number of electrons. The extrinsic semiconductor now behaves essentially like an intrinsic semi-conductor.
