Figure 1. Nanorod development from seeds.

A series of schematics showing Ag nanorod growth on In seeds deposited onto a Si substrate. (a) In (blue) is deposited at a high glancing angle onto a Si substrate (dark gray) forming In islands as seeds of various sizes. (b) Ag (light gray) is subsequently deposited at a high glancing angle, causing larger seeds to grow more. (c) Ag nanorods grow with their separation being that of the larger In seeds.