Draw the energy diagram of a pn junction, Electrical Engineering

Assignment Help:

Question:

a). Draw the energy diagram of a pn junction:
(i) at thermal equilibrium,

(ii) when a forward bias with magnitude half the built in potential (V = φk/2) is applied and

(iii)  when a  reverse bias of magnitude ten times the built in potential  (V = -3φk) is applied.

b).  With the aid of diagrams, describe how a space charge region is formed in a pn junction and how its width varies with an external bias.

c).  An abrupt silicon (ni = 1010 cm-3) pn junction consists of a p-type region containing 1017 cm-3 acceptors along with 1016 cm-3 donors and an n-type region containing 5 x 1016 cm-3 donors along with 1015 cm-3 acceptors. Calculate the total width of the depletion region if the applied voltage, V, equals 0, 0.5 and -2.5 V. Assume Vt = 25meV.


Related Discussions:- Draw the energy diagram of a pn junction

Ldst, Design a logic circuit with 4 inputs A, B, C & D that will produce o...

Design a logic circuit with 4 inputs A, B, C & D that will produce output ‘1’ only whenever two adjacent input variables are 1’s. A & D are also to be treated as adjacent, impleme

Assembly language, To find out the largest of ten 8 bit numbers. Method: Th...

To find out the largest of ten 8 bit numbers. Method: The numbers are stored in consecutive memory locations. The counter register is initialized with 0A and the address pointer po

Incorrect Solution, Hi there i just asked for question and answer for 5 cha...

Hi there i just asked for question and answer for 5 chapter and i just receive some of them in word the rest are in apiece of paper which is unprofessional could you please have l

Define the universal property of nand and nor gates, Define The universal p...

Define The universal property of NAND and NOR Gates? The NAND and NOR gates are called universal gates, because any gate can build by using these two gates. The univers

Define the term paging unit, Define the term Paging Unit. Paging Unit:...

Define the term Paging Unit. Paging Unit: The paging mechanism functions along with 4K - byte memory pages or along with a new extension obtainable to the Pentium with 4M byt

Current flow through each resistor using mesh analysis, Find the current fl...

Find the current flow through each resistor using mesh analysis for the circuit below. Step : Determine the number of common nodes and reference node within the network

Transfer function, how can i do a question concerning a transfer function

how can i do a question concerning a transfer function

Define the gauss seidel method, Define the Gauss Seidel Method The Gaus...

Define the Gauss Seidel Method The Gauss-Seidel method is an iterative method in which the voltage of each node is calculated in turn using the most up to date voltages for the

Find the total input power, Q. A 230-Vdc shuntmotor delivers 30 hp at the s...

Q. A 230-Vdc shuntmotor delivers 30 hp at the shaft at 1120 r/min. If the motor has an efficiency of 87% at this load, find: (a) The total input power. (b) The line current.

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