Fig. 3From: Tuning the Optical Properties of CsPbBr3 Nanocrystals by Anion Exchange Reactions with CsX Aqueous Solutiona Emission photograph of perovskite NCs exchanged with 1 mol/L CsX aqueous solution under 365-nm light illumination. TEM and HR-TEM images of CsPb(Br/Cl)3 NCs obtained from 60 min exchange (b, e), pristine CsPbBr3 NCs (c, f), and CsPb(Br/I)3 NCs obtained from 30 min exchange (d, g)Back to article page