Solar PERC+ P-type single crystal cell technology
Efficient PERC batteries, laser efficiency enhancement, large average annual power generation, green and low-carbon.
Type
Tags
Solution maturity
Mass promotion / Mass production
Cooperation methods
Applicable industry
Applications
Key innovations
Laser selective secondary doping of phosphorus forms a heavily doped N++ layer, which effectively reduces contact resistance and surface recombination rate, and improves PERC cell efficiency by 0.2%-0.3%.
Potential economic benefits
Increase battery efficiency by 0.2-0.3%, increase annual power generation per GW power station significantly, increase revenue, save energy and reduce carbon emissions.
Potential climate benefits
This new energy technology enables each GW of photovoltaic power station to reduce CO2.783 million tons per year, save 342,000 tons of standard coal, and significantly improve carbon reduction benefits.
Solution supplier
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Zhejiang Zhengtai New Energy Development
Zhejiang Zhengtai New Energy Development Co., Ltd., a subsidiary of Zhengtai Group, specializes in the investment, development, construction and operation of new energy projects.
China
Solution details
1. scope of application
New energy equipment.
2. Core technologies and processes
Using the diffused PSG layer as the phosphorus source, using the selective heating characteristics of laser, secondary doping of phosphorus is carried out at the electrode position on the front surface of the cell to form a selectively heavily doped N++ layer, which reduces the contact between the silicon wafer and the electrode. Resistance, reduce the surface recombination rate, increase the minority carrier life, improve the short-wave spectral response of light, increase the short-circuit current and the open-circuit voltage, and further improve battery efficiency. Based on PERC, a conversion efficiency improvement of 0.2%-0.3% can be achieved.
3. main technical parameters
The highest efficiency in mass production of monocrystalline PERC double-sided batteries reaches 23.44%, and the average efficiency reaches 23.22%.
4. comprehensive benefits
Each GW of photovoltaic power station generates an average of 1.07 billion kWh annually, saves 342,000 tce, and reduces emissions of 2.783 million tons of CO.
Last updated
04:47:14, Nov 05, 2025
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