The midstream of the photovoltaic industry chain is a crucial link that connects the past and the future, mainly including the production of photovoltaic cells and modules. This stage is not only the core embodiment of photovoltaic technology, but also determines the performance and efficiency of the final photovoltaic product.
Firstly, let’s take a look at photovoltaic cells. Photovoltaic cells, also known as “solar cells,” are semiconductor thin films obtained by processing upstream single/polycrystalline silicon wafers, which have the function of converting solar energy into electrical energy.
In the production process of photovoltaic cells, silicon wafers are doped to form P-N junctions, followed by electrode printing, including front silver paste printing and back silver aluminum paste printing, to reduce reflectivity and improve photoelectric conversion efficiency.
Among them, silver paste is the core material for the production of photovoltaic cells, and its quality directly affects the conductivity and final photoelectric conversion efficiency of photovoltaic cells.
Next, let’s talk about photovoltaic cell modules. Photovoltaic cell modules are packaged together with other packaging materials such as glass, backboard, EVA film, etc. The selection and combination of these packaging materials have a significant impact on the performance, lifespan, and safety of photovoltaic modules.
As the outermost layer on the back of photovoltaic modules, the back panel needs to have weather resistance, insulation, and protection.
As the cover plate of photovoltaic modules, the quality and performance of glass directly affect the photoelectric conversion efficiency and safety of photovoltaic modules.
In addition, as a key material for packaging photovoltaic modules, the quality and performance of EVA film also have a significant impact on the performance and lifespan of photovoltaic modules.
With the continuous progress of photovoltaic technology and the rapid development of the market, the production of photovoltaic cells and modules is also moving towards more efficient, environmentally friendly, and reliable directions.
In summary, the photovoltaic cells and modules in the middle reaches of the photovoltaic industry chain are an indispensable part of the photovoltaic industry. They not only carry the important mission of converting solar energy into electricity, but also serve as a key force in promoting the sustainable and healthy development of the photovoltaic industry.
