Chinese Team Sets New Record in CZTSSe Thin-Film PV Tech, Hits 16.6% Efficiency

Published: Mar 27, 2026 15:19

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Recently, the team led by Meng Qingbo at the Institute of Physics, Chinese Academy of Sciences, once again set a new record in new-type thin-film PV copper-zinc-tin-sulfur-selenium (CZTSSe) technology, raising the battery’s certified efficiency to 16.6%, marking the technology’s official crossing of the critical threshold for industrialisation from 15 to 16. Composed of common, low-cost elements such as copper, zinc, and tin, CZTSSe materials not only avoid reliance on rare metals but also offer strong resistance to space radiation. At present, the team has also completed the development of high performance flexible batteries and modules, and this technology is expected to achieve large-scale application in fields such as low-Earth-orbit satellite internet, space-based energy bases, and aerospace equipment in the future. This progress not only established China’s internationally leading position in this field, but also opened up strategic, high-value-added application prospects for tin metal in new energy and deep-space exploration.

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