Longi achieves 35.31% efficiency in perovskite-silicon tandem solar cell based on self-assembled molecules

Longi has developed a perovskite-silicon tandem solar cell using specially engineered molecules to improve interface quality and charge extraction, with a reported certified efficiency of 35.25% (the headline cites 35.31%). The device reportedly retained 94% of its initial efficiency after 1,500 hours of continuous operation.

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