Okay, polysilicon. 1. Monocrystalline Silicon Polycrystalline silicon is a raw material used to make solar panels. 2. Silicon is an extremely abundant element on earth. It is present almost everywhere and can be considered inexhaustible. There is no shortage of raw materials for manufacturing silicon-based solar cells. 3. The speed of polycrystalline silicon solar panels is generally two to three times that of monocrystalline silicon, and the voltage should be stable. 4. The manufacturing process of polycrystalline silicon solar cells is similar to that of monocrystalline silicon solar cells, and the photoelectric conversion efficiency is about 12%, which is slightly lower than that of monocrystalline silicon solar cells. . However, the manufacturing of the material is simple and convenient, consumes less energy, and the total production cost is low,it has therefore been considerably developed.
Single crystal has a high conversion efficiency and is expensive; polycrystalline has low conversion efficiency and is cheap.
There are many polycrystals in the domestic market, or they are all polycrystals.
The Japanese market is very popular recently, but Japan's requirements are very high and they are all monocrystalline. People's idea of Japan is to do your best and do it right the first time. It has very high requirements for mitigation effectiveness, and we need to learn from that at home.
The difference between monocrystalline solar panels and polycrystalline solar panels
Currently, the semiconductor materials of solar cells mainly include silicon, telluride of cadmium, copper, indium and gallium selenide, etc. .
The silicium is the most commonly used solar cell material, mainly divided into three types: monocrystalline silicon, polycrystalline silicon and amorphous silicon. Monocrystalline silicon solar cells have high conversion efficiency and good stability, but the cost is high; polycrystalline silicon solar cells have a relatively low cost, but the conversion efficiency is slightly lower than that of amorphous silicon solar cells which have the advantage of being thin and flexible; , but the conversion efficiency The efficiency is relatively low.
Cadmium telluride is also a common material for solar cells with high photoelectric conversion efficiency and stability and relatively low cost. However, it contains heavy metal elements and has a certain impact on the environment. Copper indium gallium selenide is a new type of matesolar cell material with high photoelectric conversion efficiency and stability, and at the same time relatively low cost, and has great development potential.
Advantages of solar cells
1. Environmentally friendly and clean energy: Solar cells use sunlight to convert electricity into electricity. Clean, non-polluting energy does not produce pollutants like fossil fuels and is environmentally friendly.
2. Renewable Energy: Solar energy is an inexhaustible source of renewable energy. Therefore, solar cells have long-term durability and stability and can ensure energy supply.
3. Low maintenance cost: Once the solar cell is installed, the maintenance cost is very low. It does not require fuel supply or complex mechanical maintenance. It requiresonly regular cleaning of the surface to maintain luminous efficiency. .
4. Wide application: Solar cells can be used in various fields, such as spacecraft, power systems, transportation facilities, buildings, etc., and can meet the electricity demand in different fields.
Okay, polysilicon. 1. Monocrystalline Silicon Polycrystalline silicon is a raw material used to make solar panels. 2.Silicon is the top of the earthIts rich elements are almost everywhere and can be considered inexhaustible. There is no shortage of raw materials for manufacturing silicon-based solar cells. 3. The speed of polycrystalline silicon solar panels is generally two to three times that of monocrystalline silicon, and the voltage should be stable. 4. The manufacturing process of silicon solar cellsm polycrystalline is similar to that of monocrystalline silicon solar cells, and the photoelectric conversion efficiency is about 12%, which is slightly lower than that of monocrystalline silicon solar cells. However, the manufacturing of the material is simple and convenient, consumes less energy, and the total production cost is low, so it has been greatly developed.
Single crystal has a high conversion efficiency and is expensive; polycrystalline has low conversion efficiency and is cheap.
There are many polycrystals in the domestic market, or they are all polycrystals.
The Japanese market is very popular recently, but Japan's requirements are very high and they are all monocrystalline. People's idea of Japan is to do your best and do it right the first time. It has very high requirements for efficiency mitigation, and weWe must learn lessons from this at home.