548284.fig.001a
(a)
548284.fig.001b
(b)
548284.fig.001c
(c)
Figure 1: Au (dodecanoic acid)-thiolate clusters embedded into a polyvinyl alcohol (PVA) matrix (1% by weight) observed under visible light (a), 365 nm ultraviolet light (b), and 254 nm ultraviolet light (c).