Solar cells are devices that directly convert light energy into electricity through the photoelectric effect or photochemical effect, with crystalline silicon solar cells working in the photovoltaic effect being the mainstream. The quality of solar panel components will be directly related to the use of energy efficiency, how to buy solar panels troubled some people. Today will briefly introduce the knowledge about solar panel purchase.
1. Commonly used cell module types and conversion efficiency comparison
Currently on the market solar cells are divided into amorphous silicon and crystalline silicon. Among them, crystalline silicon can be divided into polycrystalline silicon and monocrystalline silicon, non-crystalline silicon components are mainly thin film components. The photoelectric conversion efficiency of the three materials is: monocrystalline silicon (up to 18% or more) > polycrystalline silicon (about 16%) > amorphous silicon (8%-10%). Compared with crystalline silicon components, the main problem of thin-film solar modules is the low photoelectric conversion efficiency, to convert the equivalent amount of electricity required for the module area is huge, and there is the disadvantage of poor stability. So a comprehensive view, it is appropriate to use monocrystalline silicon or polycrystalline silicon solar cell materials, the current market mainstream is monocrystalline silicon. It is recommended that you choose monocrystalline silicon panels with higher conversion efficienc