Fig. 6From: Photonics and Nanophotonics and Information and Communication Technologies in Modern Food PackagingInfluence of the thickness (number of layers, layer thickness is 100 μm) of PVP films containing nanosized ZnO on the intensity of luminescence, [ZnO] = 2 · 10-2 mol/L. 1 One layer, 2 two layers, 3 five layers, λ ex. = 330 nm, M(PVP) = 360,000 g/molBack to article page