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What type of semiconductor is obtained when silicon is doped with arsenic?
Wiki User
∙ 10y ago
A semiconductor of silicon doped with a pentavalent impurity expected to be an n-type semiconductor.
When you dope a silicon semiconductor with pentavalent impurity the extra electron from the pentavalent compound remains free while others 4 form the covalent bonding with neighboring atoms leaving one unpaired electron.
The extra electron remains in the higher energy state nearer to the conduction band, and, depending on the material, a small amount of energy can bring the electron to the conduction band and hence electron acts as the carrier. Thus an n-type of semiconductor is formed.
Wiki User
∙ 11y ago
Wiki User
∙ 11y agoNo you get N-type semiconductor. It means there will be negatively charged electrons in free state to be the majority carrier of electricity. So it does not mean that the doped is negatively charged.
Same way as we dope with trivalent then holes are freely available. Just opposite to the electron concept we have this positively charged hole concept. Hence majority carriers are positively charged holes. Hence P type semiconductor.
Penta valent leads to N type and Trivalent leads to P type.
Wiki User
∙ 9y agoTrivalent impurities are elements with 3 valence electrons which when used to dope silicon can form a p-type semi conductor. An example is Aluminum.
Wiki User
∙ 10y agoN type
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What is the effect of temperature on hall coefficient of a lightly doped semiconductor?
hall coefficient of a lightly doped semiconductor will decrease with increase in temp as hall coefficient is inversely proportional to number density of charge carriers.
What are the functions of pnp?
In what sense? In transistor jargon, p stands for positively doped type and n for negatively doped semiconductor. Another terminology used in mobile games is Pass 'n play.
What is an intrinsic semiconductor and what is an extrinsic semiconductor?
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
What is the semiconductor junction diode?
A single crystal of semiconductor material, part doped with N type impurities and part doped with P type impurities, with the N and P types meeting at a single junction. This junction conducts only when forward biased. Such a diode may be an independent discrete component or it may be part of an integrated circuit (in which case the entire integrated circuit is the single crystal).
Why Si is semiconductor and Cu is conductor?
silicon has 4 valence electrons leaving a half empty shell sharing electrons covalently with its neighbors leaving no free electrons, copper has 1 valence electron which is so loosely bound it forms an electron gas which conducts easily. silicon can be doped with tiny amounts of impurities having 5 or 3 valence electrons, providing free electron or missing electrons called holes to carry current.
What are the examples of p-type semiconductors?
Examples of p-type semiconductors are silicon doped with gallium and silicon doped with boron. P-type semiconductor refers to positive type doping of semiconductor.
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 results when phosphorus and si are combined?
phosphorus-doped silicon ( n-type semiconductor) can be be produced by adding phosphorus to silicon to obtain a mixture, then heating and melting the obtained mixture. Or add phosphorus to already melted silicon.
When silicon is doped with phosphorous what type of semiconductor results?
it would be a n-type semiconductor because phosphorus has more valence electrons than silicon does.
In electronics what is a wafer of semiconductor material processed to form a type of integrated circuit is?
Silicon which is then doped accordingly.
What is conductivity of n type semiconductor?
What's the silicon doped with? Antimony? Arsenic? Phosphrus? And, much more importantly, how heavily is the silicon doped? Are there 1020 electrons per meter-3 or is 1025 electrons per meter-3 more the order of the day? Graphite is used as a conductor in some electrochemical cells. Processed and compressed graphite is used as brush material in electric motors. Without more information, the best answer that can be offered is a bit general. What is the electrical conductivity of n-type silicon graphite? Pretty good.
What is the difference between phosphorus doped and gallium doped semiconductors?
phosphorus doped semiconductor will be N type.gallium doped semiconductor will be P type.There are also other differences due to the different size of the dopant atoms.
Which serve as a donor impurity in silicon?
Which will serve as a donor impurity in silicon is boron or germanium or antimony or indium
What is a material that has resistance in between a conductor and an insulator?
A semiconductor (like Silicon) can be doped to act like various one way resistive conductors and insulators.
Why is pure silicon deliberately made impure again when it is used to make computer chips?
Silicon is essentially an insulator when pure. When generating wells or electron barriers, silicon is Doped with Boron, Phosphorus and Arsenic. The details of how this works can be found in numerous books on IC manufacturing.
What is intrinsic scmicondoctor?
A completely pure semiconductor crystal is called intrinsic, to underline that no substance is inserted in the crystal as impurity. An intrinsic semiconductor has a very low conductivity (it is almost an insulator, even if a current can flow if it undergoes a great voltage difference. Selected intrinsic semiconductors like Indium Phosphate (InP) or Gallium Arsenide (GaAs) are instead very effective in creating photo-stimulated electrical current (that is electrical current due to absorption of incident light) at a specific frequency called resonance frequency of the semiconductor. Other semiconductors (like Silicon, Si) lack this capability. This difference is related to the quantum mechanical behaviour of electrons in the different crystals. A semiconductor crystal where selected substances called dopants (like phosphorous or arsenic) are inserted in the crystal to give it particular properties is called doped semiconductor. Doping is more frequently used to create free charges in the semiconductor and increase conductivity. Depending on the sign of the virtual particle generated by doping in the crystal the doped semiconductor is called p doped (positive carrier generated) or n doped (negative carrier generated).
What has the author D R Meyers written?
D. R Meyers has written: 'Technical impediments to a more effective utilization of neutron transmutation doped silicon for high-power device fabrication' -- subject(s): Semiconductor doping, Silicon, Neutron irradiation
