1. Silicon solar cells;
2. Batteries consisting of inorganic salts such as III-V gallium arsenide compounds, cadmium telluride, cadmium sulfide, copper indium selenide, and other multicomponent compounds. . ;
3. Solar cells made of functional polymer materials;
4. Nanocrystalline silicon solar cells, etc.
General requirements for solar cell materials
1. The bandgap of semiconductor materials cannot be too wide
2. It must have high photoelectric conversion efficiency;
3. The material itself does not cause pollution to the environment;
4. The material is easy to produce industrially and has stable material performance.
Depending on the type of cells, they can be divided into three types: monocrystalline, polycrystalline and amorphous. Most of the productionone currently in factory is polycrystalline and less amorphous monocrystalline
According to the type of cells, they can be divided into three types: monocrystalline, polycrystalline and amorphous.
< p> p >Depending on the number of cells contained in the battery card, these are mainly: 5612p, 5612M, 6610P, 6612P
Note: 5612M
5: Cell size
6: Number of cell chains
12: Number of single chain cells
P (polycrystalline), M (monocrystalline)
The pure black you see is mainly: monocrystalline
The dark blue is mainly: polycrystalline
There is also the "flower" mentioned by the poster "is only found in polycrystalline. Polycrystalline is composed of several single crystals. There will be a boundary between single crystal and single crystal due to different conditions when they are crystallized. After cutting over time, you will see irregularitiesés. known as “flower”. In fact, a flower is a single crystal, so from the perspective of the conversion efficiency of single crystal, the efficiency of large flowers is higher than that of small flowers.