Question
In: Physics
Describe how a pn junction is formed
Describe how a pn junction is formed
Solutions
genius_generous answered 1 year agoRelated Solutions
Describe and diagram in detail what happens when a pn-junction is formed. Include the band structure...
Describe and diagram in detail what happens when a pn-junction
is formed. Include the band structure in equalibrium using the
'capacitor' approximation and describe and indicate all currents in
the junction.
Question 5: pn junction (a) Explain the main physical principles underlying the operation of a pn-junction-based...
Question 5: pn junction
(a) Explain the main physical principles underlying the
operation of a pn-junction-based diode.
(b) Provide a rigorous derivation of the net current through the
pn-junction for both the forward and reverse bias. Explain and
justify every step in your derivation.
(c) For a fixed temperature, plot the net current as a function
of applied voltage.
5.) describe and diagram in detail the behavior of the pn junction when it is forwarded...
5.) describe and diagram in detail the behavior of the pn
junction when it is forwarded biased. When it is reversed
biased.
6.) Describe how a reversed biased pn-junction is used as a
light detector.
Explain how a pn junction creates the appropriate conditions for absoring a photon and then keeping...
Explain how a pn junction creates the appropriate conditions for
absoring a photon and then keeping the electron-hole pair around
around long enough to be collected. (Explain the steps from
incoming photon to the end.)
Explain how a pn junction creates the appropriate response of the system to explain Isc and...
Explain how a pn junction creates the appropriate response of
the system to explain Isc
and Voc. (Start from incoming
photons and explain short and open circuits seperately).
PN Junctions and breakdown 1. Draw and interpret energy band diagram for pn junction in equilibrium,...
PN Junctions and breakdown
1. Draw and interpret energy band diagram for pn junction in
equilibrium, forward, and reverse bias
2. Describe what physically happens (And why) when you put n-Si
in contact with p-Si (e.g., junction formation)
3. Calculate Vo, W, Wn, Wp
4. Describe how/why current flows in forward and reverse
bias.
5. Utilize law of junction to calculate the minority carrier
concentration just outside the depletion layer
6. Quantify the forward and reverse bias current in a...
PN Junctions and breakdown 1. Draw and interpret energy band diagram for pn junction in equilibrium,...
PN Junctions and breakdown
1. Draw and interpret energy band diagram for pn junction in
equilibrium, forward, and reverse bias
2. Describe what physically happens (And why) when you put n-Si
in contact with p-Si (e.g., junction formation)
3. Calculate Vo, W, Wn, Wp
4. Describe how/why current flows in forward and reverse
bias.
5. Utilize law of junction to calculate the minority carrier
concentration just outside the depletion layer
6. Quantify the forward and reverse bias current in a...
A2) i) What is the cause of the junction capacitance and diffusion capacitance of a pn...
A2)
i) What is the cause of the junction capacitance and diffusion
capacitance of a pn junction? Under what condition the junction and
diffusion capacitance of the pn junction will exist?
ii) Is the junction capacitance of a pn junction linear? How
about the diffusion capacitance?
Explain the role of forward resistance in PN junction diode . Differentiate the approximate and simplified...
Explain the role of forward resistance in PN junction
diode . Differentiate the approximate and simplified diode models
on the basis of forward resistance.
The forward current across the depletion layer of a PN junction diode consists of electrons from...
The forward current across the depletion layer of a PN junction
diode consists of electrons
from Ν to Ρ and holes injected from Ρ to N. The ratio of the hole
current crossing
the junction to the total current is known as the injection
efficiency. Determine an
expression for the injection efficiency as a function of:
a) Na/Nd.
b) The ratio of the conductivity of Ρ to that of N.
Assume τp = Ο.1τn , and μp = 2.5
μn...
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