Chinese scientists make new achievement in perovskite-organic tandem solar cells

A researcher demonstrates the high-performance perovskite-organic tandem solar cell device at a laboratory of the Institute of Chemistry, Chinese Academy of Sciences (ICCAS), in Beijing, capital of China, July 3, 2026. A new type of solar cell developed by a team of Chinese scientists has achieved a certified steady-state power conversion efficiency of 28.04 percent, setting a new world record for this class of solar cells.

The team, led by Li Yongfang, an academician at the Institute of Chemistry, Chinese Academy of Sciences, and Meng Lei, a researcher from the institute, developed the high-performance perovskite-organic tandem solar cell by incorporating a photo-transformable stabilizer. The study was published online in Nature on Monday. (Xinhua/Jin Liwang)

PhD student Wu Ruihan (L), researcher Meng Lei (C) and academician Li Yongfang discuss test results of the high-performance perovskite-organic tandem solar cell at a laboratory of the Institute of Chemistry, Chinese Academy of Sciences (ICCAS), in Beijing, capital of China, July 3, 2026. A new type of solar cell developed by a team of Chinese scientists has achieved a certified steady-state power conversion efficiency of 28.04 percent, setting a new world record for this class of solar cells.

The team, led by Li Yongfang, an academician at the Institute of Chemistry, Chinese Academy of Sciences, and Meng Lei, a researcher from the institute, developed the high-performance perovskite-organic tandem solar cell by incorporating a photo-transformable stabilizer. The study was published online in Nature on Monday. (Xinhua/Jin Liwang)

PhD student Wu Ruihan, the first author of the research paper, tests a device of the high-performance perovskite-organic tandem solar cell at a laboratory of the Institute of Chemistry, Chinese Academy of Sciences (ICCAS), in Beijing, capital of China, July 3, 2026. A new type of solar cell developed by a team of Chinese scientists has achieved a certified steady-state power conversion efficiency of 28.04 percent, setting a new world record for this class of solar cells.

The team, led by Li Yongfang, an academician at the Institute of Chemistry, Chinese Academy of Sciences, and Meng Lei, a researcher from the institute, developed the high-performance perovskite-organic tandem solar cell by incorporating a photo-transformable stabilizer. The study was published online in Nature on Monday. (Xinhua/Jin Liwang)

Academician Li Yongfang (C), researcher Meng Lei (R) and PhD student Wu Ruihan pose for a group photo at the Institute of Chemistry, Chinese Academy of Sciences (ICCAS), in Beijing, capital of China, July 3, 2026. A new type of solar cell developed by a team of Chinese scientists has achieved a certified steady-state power conversion efficiency of 28.04 percent, setting a new world record for this class of solar cells.

The team, led by Li Yongfang, an academician at the Institute of Chemistry, Chinese Academy of Sciences, and Meng Lei, a researcher from the institute, developed the high-performance perovskite-organic tandem solar cell by incorporating a photo-transformable stabilizer. The study was published online in Nature on Monday. (Xinhua/Jin Liwang)

Academician Li Yongfang (C), researcher Meng Lei (L) and PhD student Wu Ruihan pose for a group photo at the Institute of Chemistry, Chinese Academy of Sciences (ICCAS), in Beijing, capital of China, July 3, 2026. A new type of solar cell developed by a team of Chinese scientists has achieved a certified steady-state power conversion efficiency of 28.04 percent, setting a new world record for this class of solar cells.

The team, led by Li Yongfang, an academician at the Institute of Chemistry, Chinese Academy of Sciences, and Meng Lei, a researcher from the institute, developed the high-performance perovskite-organic tandem solar cell by incorporating a photo-transformable stabilizer. The study was published online in Nature on Monday. (Xinhua/Jin Liwang)

A researcher tests a device of the high-performance perovskite-organic tandem solar cell at a laboratory of the Institute of Chemistry, Chinese Academy of Sciences (ICCAS), in Beijing, capital of China, July 3, 2026. A new type of solar cell developed by a team of Chinese scientists has achieved a certified steady-state power conversion efficiency of 28.04 percent, setting a new world record for this class of solar cells.

The team, led by Li Yongfang, an academician at the Institute of Chemistry, Chinese Academy of Sciences, and Meng Lei, a researcher from the institute, developed the high-performance perovskite-organic tandem solar cell by incorporating a photo-transformable stabilizer. The study was published online in Nature on Monday. (Xinhua/Jin Liwang)