Structure Application Of Poly Solar Panel

- Oct 11, 2017 -

In the use of solar energy, monocrystalline silicon and polysilicon also play a huge role. Although the current terms, to make solar power has a larger market, the majority of consumers to accept, we must improve the efficiency of solar cell photoelectric conversion, reduce production costs. From the current development of international solar cells can be seen that the development trend of monocrystalline silicon, polysilicon, ribbon silicon, film materials (including microcrystalline silicon-based film, compound-based film and dye film).Poly Solar Panel

The size of the grain reaches the centimeter level; due to nearly a decade of monocrystalline silicon technology research and development soon, in which the process is also used in the production of polycrystalline silicon cells, such as selective corrosion of the junction, back surface field, corrosive suede, Body passivation, fine metal gate electrode, the use of screen printing technology can reduce the width of the gate electrode to 50 microns, the height of 15 microns or more, rapid thermal annealing technology for the production of polysilicon can greatly shorten the process time, single hot Time can be completed within one minute, using the process in the 100 square centimeter of the polysilicon chip to make the battery conversion efficiency of more than 14%.Poly Solar Panel

It is reported that the current 50 ~ 60 micron polysilicon substrate produced on the battery efficiency of more than 16%. Using mechanical engraving, screen printing technology in the 100 square centimeter polycrystalline efficiency of more than 17%, no mechanical groove in the same area on the efficiency of 16%, using buried gate structure, mechanical groove in the 130 square centimeters of polycrystalline Battery efficiency of 15.8%.Poly Solar Panel

Polycrystalline silicon solar panels: Basically, polysilicon solar panels, as the name suggests, comes from a silicon substrate with multiple crystals, which is the most common type of panel. Due to the different reasons for the crystallization of silicon, this solar panel efficiency is slightly lower than the single crystal silicon, but in the combination of solar cells when the single-chip solar panels, the difference between the watts smaller than the former.Poly Solar Panel