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When a small amount of pentavalent impurity is added to a pure semiconductor , it is called n-type semiconductor , and , when a small amount of trivalent impurity is added to a pure semiconductor, it is called p-type semiconductor.
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∙ 13y ago
Wiki User
∙ 11y agon type semiconducters have negative charge on them and p type semiconducters have positive charge
Answer'P-type' and 'n-type' materials are normally electrically neutral -they have no charge on them. The 'p' and 'n' refer to the polarities of their charge carriers (holes and electrons), and not to the materials themselves.
The materials are electrically stable, each atom having the same number of protons and electrons. However, an N type substrate contains atoms (such as arsenic or phosphorous) trapped in its lattice that have an electron (called a donor electron) in the outer (valence) band of electrons, which can be easily removed by a relatively weak electromotive force (voltage). A P type substrate, although electrically neutral, contains an element (such as boron) which has one fewer electrons in its valence band that it would like to have, making it an acceptor. The missing electron is often called a "hole". To elaborate slightly, bands of electrons like to have a certain number of electrons to be "stable". A donor atom may have one, or perhaps five, electrons in its valence band, while an acceptor might have three or seven. Both would be happier with zero or four or eight. When an N and a P type substance are in contact, a negative voltage on the N material with respect to the P material will allow electrons to move from the donor material to the vacant holes in the acceptor. If the voltage is applied in reverse, the negative charge on the P material attracts the holes away from the junction, and the (relatively) positive charge on the N material attracts electrons away from the junction, and very little current flows.
Read more: What_is_the_net_charge_on_a_n-type_or_a_p-type_substance
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∙ 11y agop-type semiconductor
majority carriers-holes
minority carriers-electrons
n-type semiconductor
majority carriers-electrons
minority carriers-holes
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Why n type are electrically neutral?
Why n and p type semiconductors are electrically neutral
How are n-type and p-type semiconductors similar?
N-type semiconductor materials which have free electrons,(which are negatively charged).P-type semiconductor materials which have too few electrons. Therefore the opposite of electrons - holes (which are negatively charged).You can think of it like positive and negative poles of a magnet.
Why P and N Type Semiconductors are overall neutral?
it is because the total number of positive and negative charges remain equal throughout, so the Semi condt is always neutral in state.
Why p type semiconductor is neutral?
becsaus of dopping semiconductor is neuraly filled when n type semiconductor is mixed with p type, majority charge carrier of n type goes to p type and majority of p type goes to n....... this is called as dopping
Why the energy level of P type semiconductor is higher than of N type semiconductor?
We know that electrons are the majority carriers in n type semiconductor and holes are the majority carriers in p type semiconductor. The conductivity of n type is more than p type semiconductor due to mobility of electrons is higher than that of holes.
Why N Type Semiconductors are preferred over P Type Semiconductors?
since n type semiconductors have high mobility for electrons, they are preffered over ptype
Why n type are electrically neutral?
Why n and p type semiconductors are electrically neutral
Why conductivity of n-type semiconductors is greater than p-type semiconductors?
because in n-type there is a real movement of a free negative charge(electrones not positive holes)
How are N type semiconductors formed?
N-type semiconductors are a type of extrinsic semiconductor where the dopant atoms (donors) are capable of providing extra conduction electrons to the host material (e.g. phosphorusin silicon). This creates an excess of negative (n-type) electron charge carriers.
How are n-type and p-type semiconductors similar?
N-type semiconductor materials which have free electrons,(which are negatively charged).P-type semiconductor materials which have too few electrons. Therefore the opposite of electrons - holes (which are negatively charged).You can think of it like positive and negative poles of a magnet.
What is the difference between p-type and n-type semiconductor?
A p-type semiconductor has an excess of positively charged "holes" in its crystal lattice due to doping with acceptor atoms, while an n-type semiconductor has an excess of negatively charged electrons due to doping with donor atoms. This fundamental difference in charge carriers leads to variations in conductivity and behavior of the two types of semiconductors.
What are p type semiconductors?
P type semiconductors have been doped with trivalent elements, causing them to conduct via "hole" flow. N type semiconductors have been doped with pentavalent elements, causing them to conduct via electron flow.
Pentavalent elements are added to intrinsic semiconductors elements to produce what type?
N
What is the term for a semiconductors that contains electrons?
N-type semiconductor contains extra electrons.
How do you obtain n type semiconductors?
by adding pentavalent impurity in d pure semiconducters (like intrinsic semiconducters) is called n type semiconducters
What is the term for semiconductors that contains extra electrons?
N-type semiconductor contains extra electrons.
What is an explanation of n-type and p-type semiconductors?
In n-type semiconductor, electricity is conducted by NEGATIVE charges (electrons). In a p-type semiconductor, electricity is conducted by POSITIVE charges (holes).
