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

Alkile, Synethesis of alkanesa

Synethesis of alkanesa

Physical properties alkyl halides, Physical properties Alkyl Halides (i...

Physical properties Alkyl Halides (i) CH 3 F,CH 3 Cl, CH 3 Br and C 2 H 5 Cl are gases at room temperature. The alkyl halides up to be colourless liquids whereas higher members

Physical properties of phenol, Physical properties of Phenol (a) Phenol...

Physical properties of Phenol (a) Phenol is a colorless crystalline, deliquescent solid. It attains pink colour on exposure to air and light. (b) Phenol is capable of formin

Stephen reaction - aldehydes and ketones, Stephen reaction - Aldehydes and ...

Stephen reaction - Aldehydes and Ketones Benzaldehyde is acquired by partial reduction of phenyl cyanide along with stannous chloride and passing dry HCl gas in ether solution

The number of electrons in the nucleus of c12 is, The number of electrons ...

The number of electrons in the nucleus of C 12   is (1) 6        (2) 12       (3)0      (4)3 Ans: 0

Ether., how yield of ether is highest when the halide ion is displased from...

how yield of ether is highest when the halide ion is displased from a primary rather than secondary or tertiary halide?

Electrochemistry, how to determine the bond polarity and the potential of t...

how to determine the bond polarity and the potential of the two electrodes given: Eg Ag/Zn

Optical isomer, Are Facial & Meridinal optical active?

Are Facial & Meridinal optical active?

Why alkylamines are stronger bases than arylamines, (a) Assign a reason for...

(a) Assign a reason for each of the following statements: (i) Alkylamines are stronger bases than arylamines. (ii) Acetonitrile Is preferred as solvent for carrying out sever

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