Crystalline silicon wafers are very easy to break, even more fragile than biscuits. If they are made into thin films, they will break easily.
Crystalline silicon solar cell modules now have a hard substrate, most of which are glass, some are aluminum plates, and some are PCB boards. PCB boards are usually made of small batteries of components and adhesive battery sheets.
Amorphous silicon can be made into flexible thin-film solar cells.
Flexible thin film solar cells also include copper indium gallium selenide materials and dye sensitized materials.
There are three types of solar cell components:
(1) Monocrystalline silicon solar cells The photoelectric conversion efficiency of monocrystalline silicon solar cells is approx.iron 17%, the highest reaching 24% It has the highest photoelectric conversion efficiency among all types of solar cells, but its production cost is so high that it cannot be widely and commonly used in large quantity. Since monocrystalline silicon is usually encapsulated in tempered glass and waterproof resin, it is strong and durable. Most manufacturers usually offer a 25-year quality guarantee.
Monocrystalline flexible solar modules: Flexible solar modules are also called flex modules. The so-called flexibility means that the panels can be bent. The bend angle can reach 30 degrees. Solar cell components (also called solar panels) are the essential part of the solar power generation system and the most important part of the solar power generation system.
(2) Si solar cellspolycrystalline silicon The manufacturing 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 its photoelectric conversion efficiency is about 15%. In terms of production cost, it is cheaper than monocrystalline silicon solar cells. The material is easy to manufacture, saves energy, and the overall production cost is low, so it has been widely developed. In addition, the lifespan of polycrystalline silicon solar cells is shorter than that of monocrystalline silicon solar cells. In terms of performance-price ratio, monocrystalline silicon solar cells are slightly better.
(3) Amorphous silicon solar cells Amorphous silicon solar cells are a new type of cellsThin-film solar cells appeared in 1976. They are completely different from monocrystalline silicon and polycrystalline silicon solar cells, and the process is greatly simplified, the silicon consumption is very small, and the power consumption is lower. Its main advantage is that it can produce electricity 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. Over time, its conversion efficiency decreases.