Compensation, NA > ND
A semiconductor has been doped with both donors and acceptors, making it
compensated. Compensation occurs when ND and
NA are approximately equal, but the magnitude of the
difference between them is less than ni.
In this situation, there are twice as many acceptors than donors (assume
NA, ND >> ni ).
The band diagrams below are snapshots of the doped semiconductor at different
temperatures. Do you know what we mean by snapshots?
Which of the band diagrams below is at:
(Choose a temperature for each situation.)
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