Fig. 5From: Photonics and Nanophotonics and Information and Communication Technologies in Modern Food PackagingInfluence of the initial concentration of colloidal ZnO on the luminescence intensity of the films. 1 [ZnO] = 2 · 10−3 mol/L, 2 [ZnO] = 1 · 10−2 mol/L, 3 [ZnO] = 2 · 10−2 mol/L, λ ex. = 330 nm, M(PVP) = 360,000 g/molBack to article page