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. Author manuscript; available in PMC: 2013 Sep 20.
Published in final edited form as: J Phys Chem Lett. 2012 Aug 29;3(18):2611–2616. doi: 10.1021/jz300886z

Figure 4. Multi-scale 3D Au Nanopyramids show Orientation-dependent Behavior.

Figure 4

Single-particle scattering spectra of 80-, 45-, and 25-nm thick Au (top) tip-up and (bottom) tip-down nanopyramids show different optical responses under unpolarized light from the 3D architecture. (insets) SEM images of 25-nm thick nanopyramids. Image sizes are 450 nm × 450 nm. Adapted with permission from ref. 32 © (2009) American Chemical Society.