Weibo Yan

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• Ag Incorporation with Controlled Grain Growth Enables 12.5% Efficient Kesterite Solar Cell with Open Circuit Voltage Reached 64.2% Shockley-Queisser Limit
• Sn4+ precursor enables 12.4% efficient kesterite solar cell from DMSO solution with open circuit voltage deficit below 0.30 V (vol 64, pg 52, 2021)
• Highly efficient copper-rich chalcopyrite solar cells from DMF molecular solution