What determines generated voltage and current in solar cell?

In summary, the current and voltage of a solar cell are affected by illumination, bandgap of the material, temperature, and quantum efficiency. The doping and generation and concentration of charge carriers also play a role, as a semiconductor can only generate a finite number of charge carriers depending on its level of doping. The quasi fermi levels are also affected by doping, which can impact the bandgap and voltage of the cell. For more detailed information, resources such as Wikipedia articles on solar cells and solar cell research, as well as textbooks, can be helpful.
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I know illumination, bandgap of the material, temperature, quantum efficiency all have an effect on the current and voltage of a solar cell.

But what about the doping, and the generation and concentration of charge carriers? A semiconductor can only generate a finite number of charge carriers, dependent on how doped the n and p type materials are.

The doping of the semi conductor also effects the quasi fermi levels, which will effect the bandgap and the potential difference (voltage).
 
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  • #2
I think your questions require answers too detailed for an Internet forum.

Wikipedia has articles on solar cells, and solar cell research. At the bottom of each article is a list of links suitable to dig further.

You might also search for textbooks on the subject.

Good luck,
 
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FAQ: What determines generated voltage and current in solar cell?

1. What materials are used to make solar cells and how do they determine the generated voltage and current?

Solar cells are typically made of silicon, a semiconductor material that is able to absorb sunlight and convert it into electricity. The type and purity of silicon used, as well as the doping process, can affect the voltage and current output of the solar cell.

2. Can the size or shape of a solar cell affect its generated voltage and current?

Yes, the size and shape of a solar cell can impact its voltage and current output. A larger surface area will typically result in a higher current output, while the shape can affect the distribution of light and therefore the voltage output.

3. How does the intensity of sunlight affect the voltage and current output of a solar cell?

The intensity of sunlight can greatly impact the voltage and current generated by a solar cell. Higher sunlight intensity results in a higher voltage output and a greater amount of current being produced.

4. What role do the cell's contacts and connections play in determining the generated voltage and current?

The contacts and connections of a solar cell play a crucial role in determining the generated voltage and current. They act as pathways for the electrical current to flow out of the cell, and their design and material can affect the efficiency of the cell in converting sunlight into electricity.

5. Is the temperature a factor in determining the voltage and current output of a solar cell?

Yes, the temperature can impact the generated voltage and current of a solar cell. As the temperature increases, the voltage output decreases while the current output increases. This is due to the physics of the materials used in the cell and their response to temperature changes.

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