Light Generation of Electron Hole Pairs

[@sallyportillo2755]

You are a very good teacher, I can rewind back to absorb the information.

[@sallyportillo2755]

It is really a state of the art mind to design a technology that communicates with each other through electric current and transmission.

[@tamaszeffer7844]

I=Io exp(..), you say total light at as the function of z (1:15), dou you mean total transmitted through the thickness of z?

[@izBrnDD]

Hi! I'm watching your videos to help me study semiconductor physics at my university, and it happens, from time to time, that he gives us the intensity of the light to calculate the total current, said that we have all the data needed to calculate the non-light-related current, how do I calculate the G0? What's that constant k about? Is it the propability of a photon to generate a e-h pair?

[@user-jg2xd9sd1h]

Is Gl the representation of the total number of generated electron-hole pairs, since it was the integration of the generation rate? Was the integral of G(z) with respect to z?

[@nebiyoutadesse7710]

Gl is the total number of generated electron-hole pair at an x coordinate in the slab which is found by integrating G(z) from z = 0 (Top of the surface) to z = d (d for depth)

[@sigangsabaglari3606]

Thanks for clearing the doubt!

[@sallyportillo2755]

You have explained in the illustration concerning the photons excitation of the electrons to jump over the gap and be in the conducting band. I am designing a media of photon as big or bigger than the gap. When the light reflects on it, the photon frequency of sunlight and daylight will have a singular frequency of photon.

[@user-ge8hj9br6w]

5:08 , shouldn't we integrate G(z) and also divide by "d" the thickness, units of both the equations in the box is not the same

[@lucastadeu4947]

Which book do you recommend for a better understanding of this initial part about photoconductivity?

[@ashlynnundlall]

I don't understand how you went from G(z) to GL could you perform the actual integration sir?

[@JordanEdmundsEECS]

GL is just the integral of G(z) from 0 (the surface), to infinity (if we assume the semiconductor is very long compared to the speed at which the light attenuates)