I-V-Characteristics of Junctions with Diffusion and Generation Currents

I-V-characteristics of pn-junctions should be basic knowledge. However, it is not a particularly easy subject.
The "ideal junction", without consideration of what happens in the space charge region, is not too difficult. Including diffusion and generation currents from the SCR, however, makes things quite messy. A proper treatment besides involving some knowledge of "Shockley-Read-Hall recombination theory" still must cut a lot of corners by using all kinds of approximations.
If you are not too familiar with these topics, you may want to read up about it in the Hyperscript "Semiconductors". Here are the links:
Simple treatment of pn-junction (including SCR part)
More involved treatment of simple pn-junction
Shockley-Read-Hall recombination
More links will be found in these modules.

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go to 6.1.1 Observation of Dislocations and Other Defects

© H. Föll (Defects - Script)