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

Explain balanced wye-connected load, Balanced Wye-Connected Load Let us...

Balanced Wye-Connected Load Let us consider a three-phase, four-wire 208-V supply system connected to a balanced wye connected load with an impedance of 10 20° , as shown in F

DSP-chebyshev, Consider Chebyshev Type I versus Chebyshev Type II (also cal...

Consider Chebyshev Type I versus Chebyshev Type II (also called inverse Chebyshev) Ölters. Which one should be used based on the following criteria? (If there is no difference betw

Can you show binary number formats, Q. Can you show Binary Number Formats? ...

Q. Can you show Binary Number Formats? We in general write binary numbers as a sequence of bits (bits is short for binary digits) and we have defined boundaries for these bits.

Series connected motor, In this case, the armature is connected in series w...

In this case, the armature is connected in series with the field coils. Thus I a   = I f = I         NB. At starting, the back emf is zero (because the m

Characteristics of transformer, Q. Characteristics of Transformer? The ...

Q. Characteristics of Transformer? The characteristics of most interest to power engineers are voltage regulation and ef?ciency. The voltage regulation of a transformer is a me

Non inverting summing amplifier, Q. In the non inverting summing amplifier ...

Q. In the non inverting summing amplifier of Figure, let R d = 1k and M = 6. Find R f so that v =

Discuss the function of instruction queue in 8086, Discuss the function of ...

Discuss the function of instruction queue in 8086? In 8086, a 6-byte instruction queue is presented at the Bus Interface Unit (BIU). It is used to pre fetch and store at the ma

8085microprocessor architecture , Normal 0 false false fals...

Normal 0 false false false EN-IN X-NONE X-NONE 8085MICROPROCESSOR ARCHITECTURE

#title. Armature winding, Why is an armature winding in d.c machine called ...

Why is an armature winding in d.c machine called closed winding.

The octal butters 74ls244, The Octal Butters 74LS244 It has  two group ...

The Octal Butters 74LS244 It has  two group  of four  buffer with  no inverted tri state  output ,  controlled by  two active  low  enable lines  (1G and 2G)  as shown in figur

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