ORMOSIL composite phosphors incorporated with lanthanide complexes

Lanthanide complexes, [Eu(phen)(2)]Cl-3 and [Tb(bpy)(2)]Cl-3, were doped in to organically modified silicate (ORMOSIL) matrices over a wide range of co mposition. The features and luminescence behavior of the resultant composit e products were strongly dependent on the matrix composition. Transparent O RMOSIL composite phosphor disks were obtained under the optimized complex c oncentration and matrix composition, as well as with careful control of the drying process. Luminescence property varieties of the composites based on various matrix compositions were studied and interpreted from the viewpoin t of local chemical environment around the doped complex molecules. Those f or composite phosphors incorporated with [Eu(phen)(2)]Cl-3 were additionall y characterized by the D-5(0)-F-7(2) to D-5(0)-F-7(1) emission intensity ra tio. Illustrative models of the lanthanide complex-containing sol-gel deriv ed composites were proposed.