Lecture Notes_13-14_Non-ideal effects_Depletion capacitance_2014

Lecture Notes_13-14_Non-ideal effects_Depletion capacitance_2014

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Unformatted text preview: of (EV – EF) and (EF – EC) starts to decrease, that is, the electrons in the CB cannot tunnel to the p- side because of no available empty states in the bandgap. Thus, the current starts to decrease. All along, there is diffusion current under forward bias, as in other pn diode. At higher bias the diffusion current dominates the tunneling current, and the current increases with applied bias as in other pn diodes. Therefore, for...
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This note was uploaded on 04/01/2014 for the course ECE 103 taught by Professor Wang during the Winter '08 term at UCSD.

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