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　　What are the classifications of photovoltaic cell types?

　　There are four types of photovoltaic cells, namely monocrystalline silicon photovoltaic cells, polycrystalline silicon photovoltaic cells, copper indium selenide photovoltaic cells, and amorphous silicon photovoltaic cells. When purchasing, you can choose according to your own needs. Then what follows? Let me introduce the relevant content to you in detail.

　　1. Type classification of photovoltaic cells

　　1. Monocrystalline silicon photovoltaic cells

　　Monocrystalline silicon photovoltaic cells are a type of photovoltaic cell that was developed earlier, has the highest conversion rate, and has a large output. The conversion efficiency of monocrystalline silicon photovoltaic cells has reached an average of 16.5% in my country, and the highest conversion efficiency recorded in the laboratory exceeds 24.7%. This kind of photovoltaic cell generally uses high-purity monocrystalline silicon rods as raw materials, with a purity requirement of 99.9999%.

　　2. Polycrystalline silicon photovoltaic cells

　　Polycrystalline silicon photovoltaic cells are photovoltaic cells based on polycrystalline silicon materials. Since polycrystalline silicon materials are mostly cast instead of the drawing process of single crystal silicon, the production time is shortened and the manufacturing cost is greatly reduced. In addition, monocrystalline silicon rods are cylindrical, and photovoltaic cells made from them are also wafers, so the plane utilization rate after forming photovoltaic modules is low. Compared with monocrystalline silicon photovoltaic cells, polycrystalline silicon photovoltaic cells appear to have certain competitive advantages.

　　3. Amorphous silicon photovoltaic cells

　　Amorphous silicon photovoltaic cell is a new type of thin film cell made of amorphous silicon as raw material. Amorphous silicon is a semiconductor with an amorphous crystal structure. Photovoltaic cells made with it are only 1 micron thick, equivalent to 1/300 of monocrystalline silicon photovoltaic cells. Compared with monocrystalline silicon and polycrystalline silicon, its manufacturing process is greatly simplified, silicon material consumption is less, and unit power consumption is also reduced a lot.

　　4. Copper indium selenide photovoltaic cells

　　Copper-indium-selenide photovoltaic cells are semiconductor films made of copper, indium and selenium ternary compound semiconductors deposited on glass or other cheap substrates. Due to the good light absorption performance of copper indium selenide cells, the film thickness is only about 1/100 of that of monocrystalline silicon photovoltaic cells.

　　2. Various advantages of photovoltaic cells

　　1. No risk of depletion;

　　2. Absolutely clean (no pollution, except for batteries);

　　3. Not restricted by the geographical distribution of resources;

　　4. It can generate electricity close to where it is used, and the energy quality is high;

　　5. It is easy for users to accept it emotionally;

　　6. It takes a short time to obtain energy;

　　7. The power supply system works reliably.

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