Types of solar panels

Solar energy is currently used by many people. You must know that it is also more convenient to use. It is only because of its many advantages that it is deeply liked by many consumers. The following small series will introduce to you the types of solar panels.

1. Polycrystalline silicon solar cells: The production process of polycrystalline silicon solar cells is similar to that of monocrystalline silicon solar cells, but the photoelectric conversion efficiency of polycrystalline silicon solar cells is much lower, and the photoelectric conversion efficiency is about 12%. In terms of production cost, it is relatively cheaper than monocrystalline silicon solar cells, the material is simple to manufacture, power consumption is saved, and the total production cost is lower, so it has been greatly developed.

2. Amorphous silicon solar cell: Amorphous silicon Sichuan solar cell is a new type of thin-film solar cell that appeared in 1976. It is completely different from the production method of monocrystalline silicon and polycrystalline silicon solar cells. The process is greatly simplified and the consumption of silicon materials is very small. , the power consumption is lower, and its main advantage is that it can generate electricity even in low light conditions. However, the main problem of amorphous silicon solar cells is that the photoelectric conversion efficiency is low, the international advanced level is about 10%, and it is not stable enough. With the extension of time, its conversion efficiency declines.

3. Monocrystalline silicon solar cells: The photoelectric conversion efficiency of monocrystalline silicon solar cells is about 15%, and the highest is 24%. This is the highest photoelectric conversion efficiency of all types of solar cells, but relatively speaking, its production cost so large that it is not yet universally used.

4. Multi-compound solar cells: Multi-compound solar cells refer to solar cells that are not made of single-element semiconductor materials. There are many varieties of research in various countries, and most of them have not been industrialized. 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.