Influence of Parameters of Screen Printing on Photoluminescence Properties of Nanophotonic Labels for Smart Packaging

Figure 9

The dependency of the luminescence peak at λ = 430 (a) and λ = 520 nm (b) of printed impressions on paper with the medium content of OBAs (paper 2), obtained using ink compositions with different contents of the fluorescent component (ZnO nanoparticles), on ink layer thickness.

(a)

(b)