LONGi achieves 30.1% efficiency for M6 size wafer-level silicon-perovskite tandem solar cells

By Editor


LONGi Green Energy Technology announced the new world record efficiency of 30.1 percent for the M6 size wafer-level silicon-perovskite tandem solar cell at the 2024 Intersolar Europe in Munich, Germany.

LONGi’s achievement is according to the authoritative certification institutions of the Fraunhofer Institute for Solar Energy (Fraunhofer ISE) in Germany.

Recently, LONGi announced a new world record of 34.6 percent tandem solar cell efficiency at the 2024 SNEC EXPO in Shanghai.

Earlier, LONGi breaks the previous world record of 28.6 percent wafer-level tandem solar cell efficiency on M4 commercial size wafers in May 2023 with an absolute efficiency advantage of 1.5 percent.

The R&D team headed by He Bo, R&D Director of LONGi Central R&D Institute, achieved a photovoltaic conversion efficiency of over 30 percent for the first time on commercial-sized silicon-perovskite tandem solar cell devices.

The theoretical limit efficiency of monocrystalline silicon-perovskite tandem solar cells is up to 43 percent, making them the next generation of ultra-high efficiency solar cells after monocrystalline silicon back-contact (BC) cells.

LONGi’s Central R&D Institute has a vibrant research team of 5,000 plus members.

Notably, the team dedicated to advancing crystal silicon-perovskite tandem solar cells technology has a youthful average age of 28 years.

Dennis She, Vice President of LONGi, said LONGi has invested over 30 billion yuan in R&D, and has got 2,879 authorized patents between 2012 and 2023.

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