After the PERC TOPCon technology or become a photovoltaic technology under the tuyere

Passive emitter and the back ( 全氯乙烯) Technology has become a new generation of conventional solar cell technology. Industry organizations and consulting provides according to the latest data, in 2019, the global PERC battery capacity will exceed 100 gw. And after the PERC, represented by TOPCon contact passivation technology or become the next tuyere.

the effectiveness of these predictions may also cause the debate. The European photovoltaic industry association released '2019 - Global market report, in 2023 in the next five years there will be more and more comprehensive review articles.

it is reported, by integrating the selective emitter ( SE) Technology, advanced pulp and metallization process, etc. , in 2019 the PERC battery production efficiency has reached 22. More than 5%. To achieve lower production costs, velvet and polishing process on the back, back passivation technology, laser technology, conductive paste and metallization process supplier continuous improvement in technology and equipment, to increase the rate of equipment production capacity, and online, and reduce the material and energy consumption.

at the same time, the selective emitter, the main gate and tunneling oxide layer passivation contact ( TOPCon) Technology is being introduced standards such as PERC battery technology. By applying the passivation contact technology, crystal realize then record 23 in 2018. The PERC battery 95% efficiency. At present, the advanced p-type PERC battery highest efficiency has been promoted to more than 24% of the previously unimaginable. Double-sided PERC battery in almost no increase in costs to achieve double power generation, and 10% to 25% of the power gain in the system realization, greatly enhanced the competitiveness of the PERC technology and future development potential.

TOPCon technology through the tunneling oxide layer on the reverse of the battery and doping polycrystalline silicon layer on the surface of the whole back passivation, and many children can penetrate through the passivation layer, two layer without hole, avoid the hole in silicon and contact area of metal composite material damage. TOPCon battery technology with traditional silicon production process with high consistency. At present, there are advanced experience, TOPCon battery industrialization, production efficiency more than 23%, and still have further enhance conversion efficiency of space.

and consulting experts, TOPCon technology is considered to be the development direction of the PERC cell potential. Photovoltaic equipment giant multinational meyer's ( 迈耶汉堡) Has developed to upgrade existing PERC production line of technical solution, can make the PERC battery production efficiency up to 23% above. And after the PERC, represented by TOPCon contact passivation technology or become the next tuyere.