XI’AN, China, January 5, 2024 /PRNewswire/ — The world’s leading solar technology company, LONGi Green Energy Technology Co., Ltd. (hereinafter “LONGi”), today announced that it has set a new world record of 27.09% for crystalline silicon heterojunction efficiency. back contact solar cells (HBC), certified by the Hamelin Solar Energy Research Institute (ISFH) in Germany. The 27.09% efficient HBC cell was independently developed in LONGi using an all-laser patterning process. This is a new world record for monocrystalline silicon solar cells, breaking the 26.81% efficiency record announced in 2017. November 2022.
To alleviate the problem of high back contact cell patterning cost, LONGi R&D team pursued technological innovation, abandoned the expensive photolithography process, and successfully developed an all-laser patterning process. The all-laser patterning process was used in the recording cell at 27.09% efficiency.
Another advantage of HBC cells over heterojunction bifacial solar cells is the reduced use of transparent conductive oxide (ITO) layers. Through continuous technological improvements, LONGi’s R&D team has developed an ultra-thin TCO layer with reduced indium usage. The record cell’s indium usage of 27.09% efficiency is only 1/5 that of traditional heterojunction bifacial solar cells.
“Innovation is at the heart of business competitiveness and LONGi is committed to “making the most of solar energy to build a green world”. At LONGi, we believe that photovoltaics will play a crucial role in the global energy transition,” said Li Zhenguo, Founder & Chairman of LONGi. Li highlighted the company’s continuous pursuit of high-quality products and high-efficiency solar cell technology.
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 advanced 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
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