At 33.9%, LONGi breaks world record for efficiency in crystalline silicon-perovskite tandem cells

On Nov 3, the efficiency of the crystalline silicon-perovskite tandem cells independently developed by China's photovoltaic company - LONGi Green Energy Technology Co., Ltd. (LONGi) - reached 33.9%, setting a new global record for the efficiency of crystalline silicon-perovskite tandem solar cells, according to the latest certification report from the National Renewable Energy Laboratory (NREL) of the United States.

LONGi breaks world record for efficiency in crystalline silicon-perovskite tandem cells at 33.9% [Photo/LONGi]

This breakthrough is the latest development by LONGi after the announcement of 31.8% at the SNEC 2023 on May 24 and 33.5% at Intersolar Europe 2023 on June 4.

It is of great significance in the research field of crystalline silicon-perovskite tandem cells in the Chinese photovoltaic industry, as this is the first time a Chinese enterprise has set the new world record in this field.

The Plenary Session of the 19th China SoG Silicon and PV Power Conference [Photo/LONGi]

Li Zhenguo, founder and president of LONGi, stated that the photovoltaic conversion efficiency of solar cells is a key indicator and benchmark for evaluating the potential of photovoltaic technology. The emergence of crystalline silicon-perovskite tandem cell technology has opened up a new path for the development of next-generation high-efficiency solar cell technology.

"In November 2022, LONGi announced that its HJT silicon solar cells had achieved an efficiency breakthrough of 26.81%, setting a new world record. This time, the R&D team once again broke the world record for crystalline silicon-perovskite tandem solar cells, marking LONGi's position as the world leader in both HJT silicon solar cells and crystalline silicon-perovskite tandem cells," said Dr.Xu Xixiang, vice president of the LONGi Central R&D Institute.

Since the second half of this year, the development of the photovoltaic industry has faced many challenges. "LONGi has always been willing to focus on the exploration of cutting-edge industrial development technologies. For a long time, we have laid out multiple technological routes in the R&D sector, and created efficient R&D models and collaborative innovation mechanisms. We will lead the global photovoltaic industry through continuous technological leadership and innovation," according to Li Zhenguo.