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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 1. Multi-scale Au Nanoparticles with Different Geometries.

Figure 1

(A) Definition of multi-scale particles with fine, medium, and coarse length scales also indicated in cartoons in (B–G). Nanofabrication approaches using templates can be used to generate (B) 1D nanorods (AAO template),6 (C) 2D nanocrescents (polystyrene bead template),30 (D) 3D nanopyramids (etched square pyramidal Si template),32 (E) 3D tipless pyramids (etched square pyramidal Si template),13 (F) 3D multi-scale particles with high aspect ratios (etched rectangular Si template),8 and (G) nanopyramidal dimers with an air gap (etched square pyramidal Si template).16