What is a monocrystalline silicon solar panel?

2018-09-0272

Monocrystalline silicon solar panels are mainly manufactured using monocrystalline silicon, which has the highest conversion efficiency compared to other kinds of solar panels. In the early days, monocrystalline silicon solar panels accounted for the majority of the market share, and only after 1998 did they take a back seat to polysilicon, occupying the second largest market share. Due to the shortage of polysilicon raw materials in recent years, the market share of monocrystalline silicon has increased slightly after 2004, and monocrystalline silicon is the majority of cells seen on the market now.

The silicon crystal of monocrystalline silicon solar panels is very perfect, its optical, electrical and mechanical properties are very uniform, and the color of the battery is mostly black or dark, which is especially suitable for cutting into small pieces to make small consumer products.

The conversion efficiency of monocrystalline silicon panels is 24.7% in the laboratory and 10%-18% in common commercialization.

Due to the production process of monocrystalline silicon solar panels, the semi-silicon ingots are generally cylindrical, and then the finished products are made by slicing, > cleaning, > diffusion knotting, > removing the back electrode, > making electrodes, > corrosion peripherals, > evaporation anti-reflective coating, etc. Generally, the four corners of monocrystalline silicon solar cells are rounded. The thickness of monocrystalline silicon solar cells is generally 200uM-350uM thick, and the current production trend is to develop in the direction of ultra-thin and high efficiency, and German solar panel manufacturers have confirmed that monocrystalline silicon with a thickness of 40uM can achieve a conversion efficiency of 20%.





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