In situ preparation and luminescence properties of CaWO4 and CaWO4:Ln (Ln=Eu3+, Tb3+) nanoparticles and transparent CaWO4:Ln/PMMA nanocomposites

Fig. 1. Photographs of the as-prepared CaWO4:Eu3+/PMMA(1−3) CaWO4:Tb3+/PMMA(4−6), and CaWO4/PMMA(7) under UV excitation in dark (λ = 254 nm).117