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We report an enhanced power conversion efficiency (PCE) of 11.7%±0.2 and a fill factor (FF) of 71% for dye-sensitized solar cells (DSSC) with an active area of 0.16cm2 after modifying the TiO2photoanode with size-selective (ca. 2nm)N,F,S-codoped graphene quantum dots (NFS-GQDs) that exhibit a photoluminescence quantum yield (PLQY) of 70%. An upward shift in the Fermi level has been observed, perhaps...
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