Question: 1 ( d ) ( i ) Draw the energy band diagrams of a p - n junction at: zero bias, Reverse bias and Forward

1(d)(i) Draw the energy band diagrams of a p-n junction at: zero bias, Reverse bias and Forward bias. Show the Fermi level positions and the influence of the built in potential (Vbi) in the diagrams.
(ii)- Why does a potential barrier (Vbi) set up across a junction diode?
Can we measure the potential difference across this barrier using a voltmeter?
What does the Vbi oppose ? and explain how can we determine Vbi for a given diode?
1 ( d ) ( i ) Draw the energy band diagrams of a

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