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Power Generation Efficiency of Solar energy battery

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Time of issue:2022-09-22 15:47
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(Summary description)The photoelectric conversion efficiency of monocrystalline silicon solar energy is up to 24%, which is the highest photoelectric conversion efficiency among all types of solar energy battery.

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Power Generation Efficiency of Solar energy battery

Categories:storage battery News
Author:
Origin:
Time of issue:2022-09-22 15:47
Views:

Information

The photoelectric conversion efficiency of monocrystalline silicon solar energy is up to 24%, which is the highest photoelectric conversion efficiency among all types of solar energy battery. But monocrystalline silicon solar energy battery are so expensive to manufacture that they have not been widely and universally used in large numbers. Polycrystalline silicon solar cells are cheaper than monocrystalline silicon solar energy battery in terms of production cost, but the photoelectric conversion efficiency of polycrystalline silicon solar energy battery is much lower. In addition, the service life of polycrystalline silicon solar cells is also shorter than that of monocrystalline silicon solar cells. Therefore, in terms of cost performance, monocrystalline silicon solar energy battery are slightly better.

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Researchers have found that some compound semiconductor materials are suitable for solar photoelectric conversion films. For example, CdS, CdTe; III-V compound semiconductors: GaAs, AIPInP, etc.; thin film solar cells made of these semiconductors show good photoelectric conversion efficiency. Semiconductor materials with multiple gradient energy band gaps (the energy level difference between the conduction band and the valence band) can expand the spectral range of solar energy absorption, thereby improving the photoelectric conversion efficiency.

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