Why is the Energy Level Higher on the P Side of a PN Junction Diode?

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Why energy level is higher on p side of pn junction diode as compare to n side of same
 
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Oh no. The justification given in link is not complete. Read it again
 
This is your research project! The article explains the pn junction quite well, and provides a _hint_ for your question in case you have forgotten.

Hint: if the hint given was insufficient for recall, then you can assume that the author has explained it earlier in his lectures ... probably when explaining Fermi levels.
 
Ok. I will read . Thank you
 

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