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In article number 2001557, Wei Wang, Zongping Shao, and co‐workers introduce a multifunctional dye interlayer into lead‐free all‐inorganic Cs2AgBiBr6‐based perovskite solar cells to enhance the efficiency and stability by broadening the absorption spectrum, accelerating the charge carrier extraction, and constructing an appropriate energy level alignment. Consequently, the modified device delivers...
Perovskite solar cells (PSCs) are highly promising next‐generation photovoltaic devices because of the cheap raw materials, ideal band gap of ≈1.5 eV, broad absorption range, and high absorption coefficient. Although lead‐based inorganic‐organic PSC has achieved the highest power conversion efficiency (PCE) of 25.2%, the toxic nature of lead and poor stability strongly limits the commercialization...
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