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Band Theory - Coggle Diagram
Band Theory
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Effective Mass
If the same magnitude of electric field is applied to both electrons in vacuum and inside the crystal, the electrons will accelerate at a different rate from each other due to the existence of different potentials inside the crystal.
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Holes in semiconductor
The concept of holes is very useful, particularly in dealing with semiconductors when there are a few unoccupied electron states at the top of the valence band.
It is much easier to consider the few unoccupied states than the entire electron band minus these few states.
This introduction focuses on the basic concepts, followed by a discussion of the effective masses, conductivity, and position of the Fermi level.
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