Solar cells and electric fields

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SUMMARY

The discussion centers on the operation of solar cells, specifically the interaction between n-type and p-type silicon. When these two types of silicon are joined, electrons from the n-type rush to fill the holes in the p-type, creating a charge separation that establishes an electric field. This electric field facilitates the flow of electrons from the p-side to the n-side, while preventing the reverse flow. The confusion arises from the perception that the center region is electrically neutral, despite the presence of an electric field that governs electron movement.

PREREQUISITES
  • Understanding of semiconductor physics
  • Knowledge of n-type and p-type silicon characteristics
  • Familiarity with electric fields and charge separation
  • Basic principles of solar cell operation
NEXT STEPS
  • Research the principles of charge carrier movement in semiconductors
  • Study the formation of p-n junctions in solar cells
  • Learn about the role of electric fields in photovoltaic devices
  • Explore the efficiency factors affecting solar cell performance
USEFUL FOR

Students of physics, electrical engineers, and professionals involved in solar energy technology will benefit from this discussion.

fawk3s
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solar1-labels.gif

solar1.gif


This image confuses me a tad.
We have the n-type (negative) silicon and the p-type (positive) silicon plates.
We put the plates together. The electrons are in a rush to fill the positive "holes" on the p-side, and the positive holes are in a rush to to the n-side, to the electrons.

Between the plates, equilibrium should be reached, making the center electrically neutral. Yet the other sides of the plates remain with their, charges if you like.

Now it is said that an electric field is created in the center part, which allows the electrons to flow from the p-side to the n-side, but not the other way around. How??!

Why/how is the electric field created when the center part should be neutral, and how come the "-" attract the negative charges in the picture, and "+" repell them?

Am I getting this whole thing wrong?

Thanks in advance,
fawk3s
 

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Never mind actually. I just relized how stupid I am.
 

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