How are p-type and n-type semiconductor obtained, Chemistry

Assignment Help:

How are p-type and n-type semiconductor obtained?

A P-type semiconductor is attained by carrying out a process of doping which is adding a certain type of atoms to the semiconductor in order to increase number of free charge carriers  (in  this  case  positive).  Purpose of P-type doping is to create an abundance of holes.

When doping material is added, it takes away (accepts) weakly-bound outer electrons from semiconductor atoms. This kind of doping agent is also called as acceptor material and the semiconductor atoms that have lost an electron are termed as holes.

An N-type semiconductor is attained by carrying out a process of doping, that is, by adding an impurity of valence-five elements to a valence-four semiconductor in order to increase number  of  free  charge  carriers  (in  this  case  negative).  Purpose of N-type doping is to produce an abundance of mobile or "carrier" electrons in the material.

 


Related Discussions:- How are p-type and n-type semiconductor obtained

Explain borazole, Borazole is very stable because it is aromatic; each nitr...

Borazole is very stable because it is aromatic; each nitrogen contributes two p electrons and each boron contributes zero electrons, for a total of six p electrons in the aromatic

Explain about the dielectric breakdown, Explain about the Dielectric  Brea...

Explain about the Dielectric  Breakdown Dielectric  Breakdown  of  a  dielectric  material  is  because of the excitation of electrons into the conduction band across energy

Sublimation, How can sublimation be useful? Ex. It can be used by ... ...

How can sublimation be useful? Ex. It can be used by ... to...

Acetone react with (i)mg/h2o (ii)h2so4, This is an example of pinacone pina...

This is an example of pinacone pinacone rearrangemnt acetone with Mg and H2O forms 2,3 Dimethylbutane2.3 diol which on reacting with H+ from forms first a carbocation on carbon 2

Electro affinity, electron affinity of nitrogen is positive but of phosphor...

electron affinity of nitrogen is positive but of phosphorus it is negative why I that

Vapor pressure, Fractional distillation is based on boiling a solution of t...

Fractional distillation is based on boiling a solution of two liquids and collecting the vapor above them multiple times. This method is often used in creating distilled spirits wi

Bohr''s orbit of an atom is given by the expression, The energy of an elect...

The energy of an electron revolving in n th   Bohr's orbit of an atom is given by the expression; (1) E n = 2Π 2 me 2 z 2 /n 2 h 2                       (2) E n = 2Π 2 m

Molecular view of solution formation, Molecular View of Solution Formation ...

Molecular View of Solution Formation See the Result by zoom button   Ionic Solution

What are the properties of nitrogen, Q. What are the Properties of Nitrogen...

Q. What are the Properties of Nitrogen? Ans. Physical Properties of Nitrogen Nitrogen is a colorless, odorless and tasteless gas. It is particularly unreactive at roo

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd