Semiconductor Physics

How is a semiconductor different from a conductor?

How does current flow in an intrinsic semiconductor like silicon and germanium?

What is the effect of the impurities which produce p-type and n-type semiconductors?

A p-n junction will conduct current in one direction but not in the other. Why is that?

Describe the current characteristic of a pn junction diode.

*Band Theory of Solids

*Semiconductor Band Theory



*Intrinsic Semiconductor

*Intrinsic Current

*Electrons and Holes



*Bands for Doped Semiconductors

*PN Junction

*Forward Bias

*Reverse Bias

*PN Junction Diode

*Diode Varieties

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