LONGi Announces New World Record Efficiency of 30.1% for M6 Size Commercial Silicon-Perovskite Tandem Solar Cells

MUNICH, June 21, 2024 /PRNewswire/ — The world’s leading solar technology company, LONGi Green Energy Technology Co., Ltd. (hereinafter referred to as “LONGi”), officially announced the new world record efficiency of 30.1% for M6 size commercial silicon at the wafer level. perovskite tandem solar cell on June 19, 2024 at Intersolar Europe 2024 in Munich, Germany.

The commercial M6-sized silicon-perovskite tandem solar cell, independently certified by the authoritative certification institutions of the Fraunhofer Institute for Solar Energy (Fraunhofer ISE) in Germany achieved photovoltaic conversion efficiencies of 30.1%.

The release of this new world record comes less than a week after LONGi announced a new world record tandem solar cell efficiency of 34.6% at SNEC EXPO 2024 in Shanghaiand it also breaks the previous world record for wafer-level tandem solar cell efficiency of 28.6% on commercial size M4 wafers in May 2023 with an absolute efficiency advantage of 1.5%.

Dr. He Bo, R&D Director of LONGi Central R&D Institute, said at the launch ceremony that the new world efficiency records achieved by LONGi not only represent a significant breakthrough in pushing the boundaries of efficiency prototypes of silicon-perovskite tandem cells, but also an important step in the commercial viability of this technology, marking a major step forward for the LONGi team in its development.

Dr. He Bo said: “While continuously exploring the efficiency limits of tandem solar cells, LONGi’s R&D team has launched research on mass production technology of tandem solar cells in October 2023and in just six months, they overcame two key challenges: the preparation of large surface area perovskite films in air and metallization at very low temperatures.” By combining experience in device prototype research, the R&D team achieved photovoltaic conversion efficiency of more than 30% on commercial-sized silicon-perovskite tandem solar cell devices for the first time, showing an advantage significant efficiency compared to LONGi’s recently created efficiency record of 27.3%, significantly enhancing the global photovoltaic industry’s confidence and expectations for silicon-perovskite tandem solar cell technology.

The theoretical limit efficiency of monocrystalline silicon-perovskite tandem solar cells can reach 43%, making them the next generation of ultra-high efficiency solar cells after monocrystalline silicon back contact (BC) cells. It is an emerging photovoltaic technology that is actively researched in the global photovoltaic industry.

The creation of this “Dual-Champion” world record for tandem solar cells not only redefines the efficiency limit of two-terminal tandem cells, but also takes a key step toward the industrialization of tandem solar cells, helping LONGi to continue to be leader in the consumer market. tracks of monocrystalline silicon single junction solar cells and tandem solar cells.

“LONGi’s Central R&D Institute, the backbone of the company, boasts a dynamic research team of more than 5,000 members. Notably, the team dedicated to advancing crystalline silicon and perovskite tandem solar cell technology, which has consistently broken world records for efficiency, has a remarkably young average. at only 28 years old. » Dennis She, Vice President of LONGi, introduced the strong team at the workshop “Technological Innovation and Intelligent Manufacturing Help Photovoltaic Industry Advance Towards New Prosperity”. LONGi attaches great importance to research and technological innovation since its establishment. Since its listing in 2012 until the end of 2023, LONGi has invested more than 30 billion yuan in R&D, and has obtained a total of 2879 authorized patents.

LONGi R&D team adheres to the concept of “innovating and making good use of sunlight” by continuously exploring the limits of solar cell efficiency, promoting the industrialization of emerging photovoltaic technologies and upgrades. rapid level of green energy products, and constantly creating reliable products that maximize the customer. value.

About LONGi

Founded in 2000, LONGi is committed to being the global leader in solar technology, focusing on customer-driven value creation for comprehensive energy transformation.

Under its mission of “making the most of solar energy to build a green world”, LONGi has devoted itself to technological innovation and established five business segments, covering wafer cells and modules mono silicon, commercial and industrial distributed solar solutions, green energy solutions and hydrogen equipment. The company has been honing its capabilities to deliver green energy and has, more recently, also adopted green hydrogen products and solutions to support carbon-free global development. www.longi.com

SOURCE LONGi