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semi conductor
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∙ 13y ago
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Why you do not take pure silicon and use extrinsic silicon material?
Extrinsic silicon is just silicon that has been doped. So it has different semiconducting propeties from pure (intrinsic) silicon. Why anyone needed to introduce the words intrinsic and extrinsic into the subject always baffled me.
How many number of free electrons per cubic cm of intrinsic silicon at room temperature?
1.5*1010
What happens when heat is added to silicon?
An intrinsic (pure) silicon crystal at room temperature has sufcient heat (thermal)energy for some valence electrons to jump the gap from the valence band into theconduction band, becoming free electrons.
What happens when heat is added to pure silicon?
An intrinsic (pure) silicon crystal at room temperature has sufficient heat (thermal) energy for some valence electrons to jump the gap from the valence band into the conduction band, becoming free electrons.
Explain why arsenic-doped silicon conducts electric current better than pure silicon?
Pure silicon is intrinsic. It has a high resitivity which means it is a poor conductor of electricity in this state. The dopant that is introduced during the doping process can be arsenic, boron or phosphorous. These are the traditional choices to dope the intrinsically pure silicon. After the pure silicon becomes doped its electrical properties change. The main change is it has a lower resistivity and will conduct electricity. This is why silicon is called a semiconductor.
What are the types of intrinsic semiconductors?
The types of intrinsic semiconductors are mainly: silicon & germanium
Why we not use pure silicon instead of intrinsic silicon?
Intrinsic means no dopants. (a term used in semiconductors) So it means the same as pure.
Why you do not take pure silicon and use extrinsic silicon material?
Extrinsic silicon is just silicon that has been doped. So it has different semiconducting propeties from pure (intrinsic) silicon. Why anyone needed to introduce the words intrinsic and extrinsic into the subject always baffled me.
What is the hall effect voltage in intrinsic silicon?
zero
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.
Which element increases its electrical conductivity as its temperature increases?
Silicon because it is an intrinsic semiconductor.
What do you call a single element semiconductor material such as silicon and germanium?
Intrinsic semiconductivity
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 meant by the tolerance of a measuring instrumental?
Intrinsic error.
What is meant by 'intrinsic control of the heart beat?
shs
What is the name of two energy bands at which current is produced in silicon?
The two energy bands in which current is produced in Silicon (type of intrinsic semiconductor) are VALENCE BAND & CONDUCTION BAND
Why germanium has less barrier potential than silicon?
germanium has great intrinsic concentration at room temperature,hence conduction is great in germanum compared to silicon, and resistance decreases in germanum and hence built in potentail also less in germanum compared to silicon.built in potential of silicon is 0.7v built in potential of germanum is 0.3v. 1)intrinsic concentration of germanium at room temperature is 2.5*10^13 atoms/cm^3. 2)intrinsic concentration of silicon at room temperature of 300k is 1.5*10^10 atoms/cm^3.
