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Effect of increasing the ratio of short to long ligands on controlling the lateral size of CsPbBr3 NSs. Representative (a−d) TEM images, (e,g,i,k) lateral size distribution, and (f,h,j,l) emission spectra of CsPbBr3 NSs prepared with short-to-long ligands molar ratios equal to X = 0.33 (a,e,f), X = 0.40 (b,g,h), X = 0.52 (c,i,j), and X = 0.67 (d,k,l). Scale bars in all TEM images are 1 μm long.
