Energy band diagram, Electrical Engineering

Assignment Help:

Energy Band Diagram

Energy band diagram in qualitative form is sketched by following the following process:

1. The semiconductor device is supposed to be made by bringing together the several distinct semiconductor layers, metals or insulators of that it is composed. The starting point is hence the energy band diagram of all the constituent layers.

2. The  band  diagram  of  the  composite  device  is  sketched  by using  the  fact  that after equilibrium, the Fermi energy is similar everywhere in the system. The equalization of the Fermi energy is accompanied along with transfer of electrons from regions of higher Fermi energy to area of lower Fermi energy and viceversa for holes.

3. The redistribution of charges effects in electric field and creation of potential barriers in the system. These influences however are confined only close to the interface among the layers. The regions that are far from the interface remain as they were before the equilibrium.


Related Discussions:- Energy band diagram

Digital electronic, how many data input and data output line for 8k 16-bits...

how many data input and data output line for 8k 16-bits?

Overall performance indicator method, Overall Performance Indicator Method ...

Overall Performance Indicator Method Overall Performance Indicator could be derived from a combination of few of the specific core indicators. The way this combination is comm

Define series var compensation, Define Series VAr Compensation? For ver...

Define Series VAr Compensation? For very long transmission lines, the inductive reactance of the line becomes so high that not much power can be transmitted through the line, s

Transistor as a switch, Transistor as a switch: Transistors are genera...

Transistor as a switch: Transistors are generally employed as electronic switches, for both of the high power applications including switched-mode power supplies and low power

Explain effect of frequency of applied electric field, Explain effect of fr...

Explain effect of frequency of applied electric field. If an external electric field is applied, the distance among charges that is related to chemical bonding keeps constant i

What is induction machines, Q. What is Induction machines? We shall fir...

Q. What is Induction machines? We shall first consider polyphase induction motors and then single-phase induction motors. The polyphase induction motors used in industrial appl

Vlsi, what is the difference between latch and flipflop

what is the difference between latch and flipflop

Switching characteristics , Switching Characteristics The switching  c...

Switching Characteristics The switching  characteristics of power MOSFET the delay time and rise time are responsible to remove the  effect of internal capacitance of the devi

Illustrate the components of flexible manufacturing system, What is FMS? Il...

What is FMS? Illustrate the components of Flexible Manufacturing System? Discuss the different kinds of Material Handling and Storage Systems?

Explain the chemical properties of insulating materials, Explain the chemic...

Explain the chemical properties of insulating materials. Chemical properties - Chemical resistance: Presence of gases, acids, water, alkalies and salts influences different

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