Figure 19.

TEM images with 50 nm scale bars of linked Ag nanospheres prepared with an injection rate of 5 μL/min and for different concentrations of the precursor solution: (a) 15 μL, (b) 25 μL, (c) 35 μL, and (d) 65 μL. (i) Schematic diagram showing the model considered in finite-difference time-domain (FDTD) simulations. (ii) Simulated and normalised extinction graph for Ag nanoparticles for different chain lengths. (iii) Simulated FDTD results for the enhancement for the electric near field along the Ag nanoparticle chain (N = 11) excited by incident light of different wavelengths (420, 460, and 500 nm). Figure 19 panels i–iii were adapted with permission from [114], Copyright 2019 American Chemical Society. This content is not subject to CC BY 4.0.