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

Figure 4

The luminescence spectra of images printed onto the paper with the minimum content of OBAs (paper 1) using the ink compositions with the following contents of the fluorescent component (ZnO nanoparticles): (a) 0.15%; (b) 0.1%; (c) 0.05%.

(a)

(b)

(c)