Fundamentals of Semiconductor physics

Current-Voltage characteristic

We can now plot the current density-versus-voltage (J-V) curve for a PN junction, taking into account the special features of reverse and direct bias that we have discussed before (fig. EC8). This curve shows the existence of an “offset” (or “threshold” ) voltage Voff in the case where the ohmic resistance of the semiconductors is weak.


   
    Figure EC8 : Current density-Voltage characteristic of a PN junction
Figure EC8 : Current density-Voltage characteristic of a PN junction [zoom...]
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