Photoluminescence in composites based on polyvinylidene fluoride and filler CaGa-=SUB=-2-=/SUB=-S-=SUB=-4-=/SUB=-:Eu-=SUP=-2+-=/SUP=-

The excitation and photoluminescence spectra of composites based on PVDF and filler have been measured at room temperature. The photoluminescence spectra were analyzed at different concentrations of Eu 2+ ions. It was found out that positions of PL spectra maxima do not change with an increase in the content of Eu 2+ ions in the compound and remain ~ 550 nm at all percentages. Radiation with such a maximum is caused by the 4f 6 5d 1 -> 4f 7 5d electronic transition. Keywords: photoluminescence, excitation, rare earth element, phosphor, europium.