Skip to main content
. Author manuscript; available in PMC: 2011 Sep 1.
Published in final edited form as: Nanoscale. 2010 Jul 7;2(9):1715–1722. doi: 10.1039/c0nr00303d

Figure 3.

Figure 3

Characterization of size-dependent LSPR spectra of single Ag NPs in solution: (a) representative dark-field optical color images of single Ag NPs, (b) representative LSPR spectra of single Ag NPs, and (c) histograms of the distribution of peak wavelength (λmax) of LSPR spectra of single NPs, for (A) 3.1 ± 0.6, (B) 3.4 ± 5.8, (C) 46.4 ± 6.1, and (D) 1.1 ± 7.6 nm Ag NP solution, respectively. More than 300 of single NPs are studied for each solution to construct the histograms in (c). Scale bar of 2 μm in (a) shows the distances among single NPs, but not the sizes of NPs, because NPs are imaged under optical diffraction limit (~ 250 nm).