Size Effects of Closed Encounter Ag Nanoshell Pairs for SERS Application

Figure 2

Light intensity in the gaps of Ag nanoshell pairs with various diameters and thickness: (a–d) Ag nanoshell pairs with diameters 50, 100, 150, and 200 nm and with shell thickness 5, 7.5, 10, and 15 nm.

(a)

(b)

(c)

(d)