Which of the following element should be added to silicon to make it n-type semiconductor?

Which of the following element should be added to silicon to make it n-type semiconductor?

Two of the most important materials silicon can be doped with, are boron (3 valence electrons = 3-valent) and phosphorus (5 valence electrons = 5-valent). Other materials are aluminum, indium (3-valent) and arsenic, antimony (5-valent).

What element could be combined with silicon to create an n-type semiconductor in a laser?

An n-type semiconductor is an intrinsic semiconductor doped with phosphorus (P), arsenic (As), or antimony (Sb) as an impurity. Silicon of Group IV has four valence electrons and phosphorus of Group V has five valence electrons.

Which element mixed with silicon gives N-type?

As it is given in the question that silicon is doped with arsenic, which is a group 14 element therefore, it will be a n-type extrinsic semiconductor. Therefore, the correct answer is doping of arsenic to silicon gives us an extrinsic semiconductor of n-type.

How N-type semiconductors are formed?

N-Type Semiconductors: N-Type semiconductors are formed by doping pure elements element such as Silicon (Si) and Geranium (Ge) having 5 valence electrons with pentavalent impurity such as Antimony (Sb), Arsenic (As) or phosphorus (P) having four valence electrons.

Which of the following elements may be added to pure silicon to create a P-type semiconductor?

Silicon is an element with four electrons in its outer shell. To make a p-type semiconductor extra materials like boron or aluminium are added to the silicon. These materials have only three electrons in their outer shell.

What is the valence of a substance added to silicon to form an n-type semiconductor?

The fifth valence electron of As creates a surplus of electrons. When just a few atoms of the dopant replace silicon atoms in the lattice, an n-type semiconductor is created.

Which of the following atoms would be an n-type dopant in Si?

So, group V materials (P, As, Sb) would be an n-type dopant in silicon, while Group III materials (mainly boron) act as p-type dopants.

Which of these elements would give ap type semiconductor when added to a silicon crystal?

To get p-type of semiconductor, we should dope Si with electron deficient species such as boron that has fewer than four valance electron. Boron atoms replaces some silicon atoms. After a boron atom forms bonds to four silicon atoms, one of the boron silicon bonds has only one electron in it.

What is n-type silicon wafer?

N-Type Silicon Substrates N wafers are strongly doped at 1 ohm / cm2 and are suitable for a wide range of applications, from small-bit and single-byte to multi-byte and multiple-bit.

Which of the following elements are used in N-type semiconductor?

What is an n-type Semiconductor? An n-type semiconductor is an intrinsic semiconductor doped with phosphorus (P), arsenic (As), or antimony (Sb) as an impurity. Silicon of Group IV has four valence electrons and phosphorus of Group V has five valence electrons.

Which dopant added to SI will create an type semiconductor?

When a few atoms of trivalent dopant replace silicon atoms in the lattice, a vacant state (or electron “hole”) is created and can act as electron carrier through the structure, which creates a p-type semiconductor.

How is an n-type semiconductor formed How is an p-type semiconductor formed?

A p-type semiconductor is created when group III elements are doped to a complete semiconductor material. As opposite, an n-type semiconductor is created when group V elements are doped to an intrinsic semiconductor.

What elements are used to make n-type silicon?

A short list includes Arsenic (As) and Phosphorus (P) (these can be introduced in the highest concentrations) also possible are Antimony (Sb), Bismuth (Bi) and Lithium (Li). The following elements from the 5th column of periodic table are used to make n-type silicon: Phosphorus (P), Arsenic (As) and Antimony (Sb).

What are n type semiconductors made of?

N-type semiconductor. An N-Type semiconductor is created by adding pentavalent impurities like phosphorus (P), arsenic (As), antimony (Sb), or bismuth (Bi). A pentavalent impurity is called a donor atom because it is ready to give a free electron to a semiconductor. The impurities are called dopants.

What elements are used to make semiconductors?

The pentavalent impure atoms like phosphorus, arsenic, antimony, bismuth or some other chemical element are used to produce n-type semiconductors. These impure atoms are called donor impurities because they give free electrons to a semiconductor.

Why n-type semiconductor is doped with a donor atom?

The n-type semiconductor is doped with a donor atom because the majority charge carriers are negative electrons. As silicon is a tetravalent element, then the structure of normal crystal includes four covalent bonds from 4 external electrons.