Differentiate between n and p type semiconductors, Electrical Engineering

Assignment Help:

Differentiate between n and p type semiconductors.

n - Type semiconductor:-

(i) If small amount of pentavalent impurity is added with, to a pure semiconductor giving a large number of free electrons in this, the extrinsic semiconductor therefore formed is termed as n- type semiconductor. The addition of pentavalent impurities as arsenic and antimony give a large no. of free electrons in the semiconductor crystal. These impurities, that produce n- type semiconductors, are termed as donor impurities since each atom of them donates individual free electron to the semiconductor crystal.       

(ii) The majority and minority carriers are electrons and holes correspondingly.

(iii) The impurity level is here below the bottom of conduction band.

p - Type semiconductor:-

(i) If small amount of trivalent impurity is added with to a pure semiconductor giving a large no. of holes in this, the extrinsic semiconductor therefore formed is termed as p- type semiconductor. This addition of trivalent impurities as gallium and indium give a large no. of holes in the semiconductor crystal. Theses impurities, that produce p- type semiconductors, are termed as acceptor impurities since each atom of them creates one hole that can accept one electron.

(ii) The majority and minority charge carriers are holes and electrons correspondingly.

(iii) The impurity level is here above the valence band.


Related Discussions:- Differentiate between n and p type semiconductors

What do you mean by exponent, Q. What do you mean by Exponent? The expo...

Q. What do you mean by Exponent? The exponent field needs to represent both negative and positive exponents. To perform this, a bias is added to the actual exponent in order

How is energy stored in a capacitor, Energy stored in a capacitor Durin...

Energy stored in a capacitor During charging process by capacitor, it will get energy. Energy is stored in static form. The voltage in capacitor will enhance from 0 volt to E v

Explain a miller sweep generator, Q. With the help of circuit diagram expla...

Q. With the help of circuit diagram explain a Miller Sweep generator Figure given below shows the circuit of a Miller integrator or a sweep circuit. Transistor Q1 acts as a swi

Current trasnsformer, A 13.8 kV feed er circui t breaker has a 600:5 multir...

A 13.8 kV feed er circui t breaker has a 600:5 multira tio curr ent transform er with charact eristics as show n in Figure 5.11. Th e max - imum load on the feed er is 80 A pri mar

Preventive and regular maintenance, Preventive and Regular Maintenance ...

Preventive and Regular Maintenance Preventive and regular manages of components of the distributions system is necessary to reduce/eliminate breakdowns. Care should be taken t

Electrical Engineering Design Report, hi there i just need help for Electri...

hi there i just need help for Electrical Engineering Design Report about any topic (prefer charger and inverter) which should be include Summary,Table of contents,Introduction,Body

Factors which affect the inductance of an inductor, Factors which affect th...

Factors which affect the inductance of an inductor include:  i)  The number of turns of wire (N) - more turns the higher the inductance ii)  The cross-sectional area of the

Transmission and distribution, A three-phase transposed line is composed of...

A three-phase transposed line is composed of one conductor per phase with flat horizontal spacing of 11 m as shown in Figure 1(a). The conductors have a diameter of 3.625 cm and a

Show how a 16-to-1 multiplexer can be obtained, Q. Using two 8-to-1multiple...

Q. Using two 8-to-1multiplexers and one 2-to-1multiplexer, show how a 16-to-1 multiplexer can be obtained in the form of a block diagram.

Sequential circuit, a 4 bit synchronous counter uses flip flops with propag...

a 4 bit synchronous counter uses flip flops with propagation delay times of 15ns each. what will be the maximum possible time requires for change of state?

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