What are semiconductors, Physics

Assignment Help:

What are semiconductors? Give an example for n-type semiconductors.


Semiconductors are materials having electrical conductivity among that of insulators and conductors. This is because, in semiconductors, there is only a small difference in energy among the ?lled valence band of electrons and the empty conduction band. They are the solids which act as insulator at absolute zero but conduct electricity at ordinary temperatures. For instance, N-type semiconductor is obtained by doping Phosphorous or Arsenic on Silicon or Germanium

 


Related Discussions:- What are semiconductors

Magnetic field is zero, Two parallel wires P and Q situated at a separation...

Two parallel wires P and Q situated at a separation of 6 cm carry electric currents i 1 =5 A and i2 = 2 A in opposite directions as given in fig-. Determine the point on the line

Determine speed of the slider, The spring of constant k is un-stretched whe...

The spring of constant k is un-stretched when the slider of mass m pass position B as shown in the figure above.  If the slider is released from the position A, Determine: (i) S

Describe kirchoffs current law, Describe Kirchoffs Current Law? Ans. It...

Describe Kirchoffs Current Law? Ans. It defines " the current flowing toward a point in a circuit have to be equal to the current flowing away from that point. I = I 1 + I

Vibrating strings, Two wires on a piano are the same length and are pulled ...

Two wires on a piano are the same length and are pulled by the same tension. wire 1 vibrates at a frequency 1.5 times the frequency of wire 2. Calculate the ratio of their masses (

Measure thickness of thin silicon-chip by bi-prismexperiment, Q.   How will...

Q.   How will you measure thickness of thin silicon-chip using Bi-prism experiment? Derive the formula used. When a thin silicon chip, thin film of soap bubble etc. is introduc

Diffraction of light, The phenomenon of diffraction was first discovered by...

The phenomenon of diffraction was first discovered by Girmaldi. Its experimental study was completed by Newton's and young. The theoretical explanation was first provided by Fresne

Tachyon, Tachyon A purely speculative particle that is presumed to trav...

Tachyon A purely speculative particle that is presumed to travel quicker than light. According to Einstein's equations of special relativity, a particle along an imaginary rest

Get the expression for the diameter of dark and bright ring, Explain the pr...

Explain the production of Newton's ring because of reflected light with a neat diagram. Get the expression for the diameter of both dark and bright ring.

What is the meaning of rate constant in the rate expression, A reaction is ...

A reaction is first order in A and second order in B. (a) Write differential rate equation. (b) How is the rate affected if the concentration of B is tripled? (c) How is

Find the tension must this wire be stretched, A steel wire in a piano has a...

A steel wire in a piano has a length of 0.6000 m and a mass of 3.600   10 -3  kg. To what tension must this wire be stretched in order that the fundamental vibration correspond to

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