Polycrystalline solar panels are composed of high-efficiency polycrystalline silicon solar cells, tempered glass EVA film and lightweight electroplated gold. It can be used in solar street lights, solar lawn lights, solar power generation systems, communications, aerospace and other channels. Polycrystalline silicon is an aggregate containing a large number of single-crystalline particles, which have a variety of unique components arranged in different directions. It is manufactured by melting, casting and solidifying waste monocrystalline silicon materials and metallurgical grade silicon materials. It is simple to manufacture and inexpensive. Usually, the photoelectric conversion efficiency of polycrystalline silicon solar cells is about 18%.
Raw material characteristics: Cells: use silicon solar wafer packaginghigh efficiency monocrystalline (over 18%) to ensure sufficient energy production from solar panels. Glass: Made of tempered low iron suede glass (also known as white glass), thickness 3.2mm, with a light transmittance of over 91% in the wavelength range of the spectral response solar cells (320-1100 nm), for infrared light. greater than 1200 nm Has higher reflectivity. This glass is also resistant to solar ultraviolet rays and light transmission does not decrease. EVA: A layer of high-quality EVA film with a thickness of 0.78 mm and added with anti-UV agent, antioxidant and curing agent is used as the sealant of the solar cell and as bonding agent with glass and TPT. It has high light transmittance and anti-aging ability. TPT: The fluoroplastic film, the back cover of the solar cell, is white andreflects sunlight, thus slightly improving the efficiency of the module. Due to its high infrared emissivity, it can also reduce the operating temperature of the module. efficiency of components. Of course, this fluoroplastic film first meets the basic requirements of aging resistance, corrosion resistance and airtightness required by solar cell packaging materials. Frame: The aluminum alloy frame used has high strength and strong resistance to mechanical impact. It is also the most valuable element in home solar power generation.
Which is better, a monocrystalline solar panel or a polycrystalline solar panel?
Well, polycrystalline silicon. 1. Monocrystalline Silicon Polycrystalline silicon is a raw material used to make solar panels. 2. Silicon is an extremely abundant elementnt 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, so it has been greatly developed.
Single crystal has a high conversion efficiency and is expensive; polycrystalline has low conversion efficiency and is cheap.
It existste many polycrystals in 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.
Okay, polysilicon. 1. Monocrystalline Silicon Polycrystalline silicon is a raw material used to make solar panels. 2. Silicon is on EarthExtremely 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 tension must 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, 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 things right first.cut. It has very high requirements for mitigation effectiveness, and we need to learn from that at home.