LONGi Green Energy achieves 27.09% efficiency in silicon heterojunction back-contact solar cells, surpassing the 26.81% efficiency record announced in November 2022. The breakthrough, certified by the Institute for Solar Energy Research Hamelin, Germany involves an all-laser patterning process developed in-house, addressing cost concerns associated with photolithography. Notably, the technology reduces reliance on transparent conductive oxide layers compared to bifacial heterojunction solar cells.
LONGi breaks records with 27.09% efficient solar cells
LONGi’s R&D achieved the breakthrough by creating a super-thin TCO layer, cutting indium use to 1/5 compared to traditional cells. Image Credit LONGi Green Energy.
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