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Feb
23
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Oct
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accepted What does $\psi_j(r_i)$ mean?
Sep
30
asked What does $\psi_j(r_i)$ mean?
Jul
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accepted What's the difference between Fermi Energy and Fermi Level?
Jul
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awarded  Scholar
Jul
3
accepted Confused about charge seperation in solar cells
Jul
2
comment Confused about charge seperation in solar cells
I've been doing a bit of reading and it's my understanding that there are two competing forces for driving electrons and holes across a p-n junction, diffusion and drift. Diffusion makes electrons travel from the n-type to the p-type material, leaving behind positive ions. A depletion region occurs, and over this region there is an electric field due to the electrons in the p-type and positive ions in the n-type. This electric field balances out the diffusion so there's no net current. So how is it then when a electron hole pair is created, it creates current?
Jun
28
awarded  Student
Jun
28
asked Confused about charge seperation in solar cells
Jun
28
asked What's the difference between Fermi Energy and Fermi Level?