Fig. 3. Comparison of the optical absorbance features and morphological characteristics of AuNSs with similar main LSPR peak positions (λ1) obtained by using Au seeds of different sizes. Normalized absorbance spectra (a and c) and the TEM micrographs (b and d) of AuNSs synthesized using varying amounts of (a) d = 5 nm and (b) d = 12 nm Au seeds with λ1 max at 650, 700, 750, and 800 nm. Scale bar 100 nm; reprinted with permission from ref. 41. Copyright © 2018 American Chemical Society.
