Research Article

The Influence of Parameters of Ink-Jet Printing on Photoluminescence Properties of Nanophotonic Labels Based on Ag Nanoparticles for Smart Packaging

Figure 3

Fluorescence spectra ( = 435 nm) of Ag NPs stabilized with α-DHLA with the addition of 0.2 wt% PVP dispersed in water. [Ag0] = 6 × 10−3 M. Inset: photographs of fluorescent Ag nanoclusters in water under the exposure of UV light (excitation at 420 nm).