Energy Modes affect on Conductance (N-P-Superconductor layers)

[Boccard]

TL;DR Summary

N - P - Superconductor.

I am considering a system that includes a pn-region with N first then P, then a superconductor, but I am not interesting in the effect of the modes present due to the confinement of the p-region of the system on the conductance (from electrons to holes). How do negate these energy modes in the conductance? Is it a simple case of plotting the density of states to see where there would be maxima due to the confinement in the p-region? Or what would be the best way to do this?

 

[BigJDubs]

The best way to negate these energy modes in the conductance is to use a material that has a strong enough band gap to prevent electrons from crossing into the p-region. Materials such as gallium arsenide (GaAs), indium phosphide (InP) or aluminum gallium arsenide (AlGaAs) are often used for this purpose. Additionally, you can also use an insulating layer between the p-region and the superconductor to further reduce the probability of any electron crossing into the p-region. Finally, you can plot the density of states to determine where maxima occur due to confinement in the p-region. This will help you identify areas where electrons are more likely to cross into the p-region and take corrective measures to prevent it.