α-Lipoic Acid Mediates Rapid Spiro-OMeTAD Doping for High-Performance Perovskite Solar Cells
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The instability of 2,2',7,7'-tetrakis[N,N-di(4-methoxyphenyl)amino]-9,9'-spirobifluorene (spiro-OMeTAD)-based n-i-p perovskite solar cells (PSCs) with lithium bis(trifluoromethane)sulfonimide doping arises from ionic shuttling and uncontrolled oxidation. He... ...