March 2014
Intermediate to advanced
624 pages
26h 33m
English
Understand conduction and valence energy bands, and how band gaps are formed
Appreciate the idea of doping in semiconductors
Use the density of states and Fermi Dirac statistics to calculate carrier concentrations
Calculate drift currents in an electric field in terms of carrier mobility, and how mobility is affected by scattering
Discuss the idea of “effective” masses
In this chapter we begin to discuss the specific mechanisms by which current flows in a solid. In examining these mechanisms we shall learn why some materials are good conductors of electric current, whereas others are poor conductors. We shall see how the conductivity of a semiconductor can be varied ...
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