Researchers at the Chinese Academy of Sciences have reported a perovskite–organic tandem solar cell with a claimed record efficiency of 28.04%, using a photo-transformable TDB molecule to improve perovskite film quality and device stability.
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https://www.pv-magazine.com/2026/07/15/chinese-scientists-achieve-world-record-efficiency-of-28-04-for-perovksite-organic-tandem-solar-cell/




