Optical properties of europium(III) β-diketonate/polymer-doped systems using supercritical carbon dioxide

► The optical properties of polymers doped with Eu3+ β-diketonates using SC CO2 were investigated. ► A comparative analysis of the PL decay times in the initial Eu3+ β-diketonates and doped polymers was carried out. ► The SC CO2 impregnation of polymers with Eu3+ β-diketonates containing 1,10-phenanthroline was found to be obstructed.