Recently, certified by the Institute of Solar Energy Hamelin (ISFH) in Germany, LONGi's silicon heterojunction cell (p-HJT) made of gallium-doped p-type silicon wafers has achieved a new breakthrough in efficiency: fully utilizing the mass-produced process in full-scale (M6 Size, area 274.3cm²) single crystal silicon wafer, created a world record for the efficiency of large-scale p-type photovoltaic cells with a conversion efficiency of 25.47%, further verifying the feasibility of low-cost heterojunction mass production technology.

The German Institute for Solar Energy Hamelin (ISFH) is an authoritative third-party testing organization in the field of solar energy, and its tested cell efficiency is widely recognized around the world.

For this efficiency breakthrough, the LONGi R&D team explored a p-type silicon wafer process solution for heterojunction cells, combined with excellent interface passivation technology, so that the VOC (open circuit voltage) of p-HJT cells reached 747.6 mV. It is worth mentioning that this low-cost heterojunction cell solution (p-HJT) has not been fully optimized for the process. LONGi believes that this technical route still has great development potential in the future.

As the world's leading solar technology company, LONGi has always paid attention to the main channel of cell efficiency, and believes that the essence of technological innovation is to improve cell efficiency. In 2021 alone, LONGi has broken the world record for photovoltaic cell conversion efficiency seven times. Among them, the conversion efficiencies of n-type TOPCon, p-type TOPCon and n-type HJT cells were pushed up to 25.21%, 25.19%, and 26.30%, respectively. Innovating for change and daring to be the first, LONGi's R&D team will continue to be guided by the long-term value of end customers and constantly challenge the limits of new technology applications.

Over the years, as a partner of LONGi, Jingshun has been adhering to the principle of high quality and low price, and has shipped high-efficiency and high-quality solar panels to dozens of countries. In the future, JIngsun will always make improvements and efforts to protect the global green environment. https://www.jingsun-energy.com/