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

Hall effect is associated with which material, Hall Effect is associated wi...

Hall Effect is associated with (A) Conductors. (B) Semiconductors. (C) Thermistors. (D)Solders. Ans: Hall Effect is associated with semiconductors.

Designated consumers - features of energy conservation, Designated Consumer...

Designated Consumers - Features of Energy Conservation The Act gives the list of designated consumers, which involves the energy intensive industries, Railways, Port Trust, Tr

Resistors, what are the classifications of fixed resistor?explain

what are the classifications of fixed resistor?explain

Explain iron and silicon iron alloys, Explain iron and silicon iron alloys....

Explain iron and silicon iron alloys. Iron: Galvanised steel and iron wires that are usually used for earth conductor in low voltage distribution systems may also be utilize

Calculate the approximate donor binding energy, Calculate the approximate d...

Calculate the approximate donor binding energy Calculate the approximate donor binding energy for Si (r = 11.7,m x n = 1.18 m 0 ) Solution: From E= m * n q 4 / 2(4 πε 0

Society in engineering, Cite a specific example in which the engineer must ...

Cite a specific example in which the engineer must provide maximum efficiency for a given cost

Voltage doubler, Voltage Doubler: The network of Fig. is a half wave v...

Voltage Doubler: The network of Fig. is a half wave voltage doublers. During the positive voltage half cycle across the transformer, secondary diode D 1 conducts, charging ca

State norton''s theorem, Norton's Theorem Nortons Theorem states: "A...

Norton's Theorem Nortons Theorem states: "Any linear circuit containing several energy sources and resistances can be replaced by a single Constant Current generator in para

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