Fig. S10.

Distribution of the maximum PL change ($\mathrm{\Delta }{F}_{max}$) normalized to the SD of PL ($F_{std}$) for each measured fluorescent spot in (A) hydroxylated and (B) hydrogenated NDs on 5 nm Al₂O₃-coated ITO electrodes. (A) For hydroxylated NDs, 13% of 222 measured fluorescent spots showed PL change larger than 1.5 $F_{std}$. (B) For hydrogenated NDs, 1.2% of 728 measured fluorescent spots showed PL change larger than 1.5 $F_{std}$.