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Basic characteristics of solar cells

  • Author:chipstores
  • Source:chipstores.com
  • Release on :2018-09-27


china Electronic Components Supplier

The basic characteristics of solar cells are the three basic characteristics of the polarity of solar cells, the performance parameters of solar cells, and the volt-ampere characteristics of solar cells.

1, the polarity of solar cells

Silicon solar cells are generally made of P+/N type structure or N+/P type structure, P+ and N+, indicating the conductivity type of the semiconductor material of the front side of the solar cell; N and P, indicating the conductivity type of the semiconductor material of the back surface of the solar cell. . The electrical properties of a solar cell are related to the properties of the semiconductor material used to make the cell.

2, solar battery performance parameters

The performance parameters of the solar cell are composed of open circuit voltage, short circuit current, maximum output power, fill factor, conversion efficiency, and the like. These parameters are a measure of the performance of a solar cell.

3 volt-ampere characteristics of solar cells

The P-N junction solar cell comprises a shallow P-N junction formed on the surface, a strip-shaped and finger-shaped front ohmic contact, a back ohmic contact covering the entire back surface, and a layer of anti-reflective layer on the front side. When the battery is exposed to the solar spectrum, photons with energy less than the forbidden band width Eg do not contribute to the battery output. Photons with energy greater than the forbidden band width Eg will contribute energy Eg to the battery output, and energy less than Eg will be consumed in the form of heat. Therefore, in the design and manufacture of solar cells, the influence of this part of heat on battery stability, life, and the like must be considered.

material of the front side of the solar cell; N and P, indicating the conductivity type of the semiconductor material of the back surface of the solar cell. . The electrical properties of a solar cell are related to the properties of the semiconductor material used to make the cell.

2, solar battery performance parameters

The performance parameters of the solar cell are composed of open circuit voltage, short circuit current, maximum output power, fill factor, conversion efficiency, and the like. These parameters are a measure of the performance of a solar cell.

3 volt-ampere characteristics of solar cells

The P-N junction solar cell comprises a shallow P-N junction formed on the surface, a strip-shaped and finger-shaped front ohmic contact, a back ohmic contact covering the entire back surface, and a layer of anti-reflective layer on the front side. When the battery is exposed to the solar spectrum, photons with energy less than the forbidden band width Eg do not contribute to the battery output. Photons with energy greater than the forbidden band width Eg will contribute energy Eg to the battery output, and energy less than Eg will be consumed in the form of heat. Therefore, in the design and manufacture of solar cells, the influence of this part of heat on battery stability, life, and the like must be considered.