March 2014
Intermediate to advanced
624 pages
26h 33m
English
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3.5 Invariance of the Fermi Level at Equilibrium
In this chapter we have discussed homogeneous semiconductors, without variations in doping and without junctions between dissimilar materials. In the following chapters we will be considering cases in which nonuniform doping occurs in a given semiconductor, or junctions occur between different semiconductors or a semiconductor and a metal. These cases are crucial to the various types of electronic and optoelectronic devices made in semiconductors. In anticipation of those discussions, an important concept should be established here regarding the demands of equilibrium. That concept can be summarized by noting that no discontinuity or gradient can arise in the equilibrium Fermi level EF.
To demonstrate ...
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