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

Figure 7

The luminescence spectra of images printed onto the paper with the medium content of OBAs (paper 2) and ink compositions with the following contents of the fluorescent component (ZnO nanoparticles): (a) 0.15%; (b) 0.1%; (c) 0.05%.

(a)

(b)

(c)