LONGi has announced a new efficiency breakthrough for its Gallium-doped p-type HJT silicon solar cell. The new world record conversion efficiency of 25.47% for large-size p-type cells was achieved using a mass production process on full-size (M6, 274.3cm²) monocrystalline silicon wafers, the result, validated in testing carried out at the Institute for Solar Energy Research in Hamelin (ISFH), further demonstrating the feasibility of low-cost HJT mass production technology.
LONGi’s R&D team has developed a p-type wafer processing solution for HJT cells and combined it with interface passivation technology to achieve a Voc of 747.6 mV for p-HJT cells. It should be noted that the processing of the low-cost p-HJT cell solution applied in this record has not yet been fully optimized and LONGi is convinced that this technology route still has great potential for further development.
As a world-leading solar technology company, LONGi remains at the forefront of innovation in cutting-edge PV technologies. In 2021, the company established an impressive series of efficiency records, with its n-type TOPCon, p-type TOPCon and n-type HJT cells achieving conversion efficiencies of 25.21%, 25.19% and 26.30% respectively.
Going forward, LONGi will continue to increase its investment in technology R&D and focus on customer value creation, in order to accelerate global energy transformation and contribute to the achievement of carbon reduction targets with its high-efficiency products continuing to deliver lower LCOE.
About LONGi
Founded in 2000, LONGi is committed to being the world’s leading solar technology company, focusing on customer-driven value creation for full scenario energy transformation.
Under its mission of 'Utilizing Solar Energy, Building a Green World' and brand philosophy of 'Steadfast and Reliable Technology Leadership', LONGi has dedicated itself to technology innovation and established five business sectors, covering mono silicon wafers, cells and modules, commercial & industrial distributed solar solutions, green energy solutions and hydrogen equipment. The company has honed its capabilities to provide green energy and has, more recently, also embraced green hydrogen products and solutions to support global zero carbon development. www.longi.com