Spectroscopic analysis of Eu3+ doped silica–titania–polydimethylsiloxane hybrid ORMOSILs

摘要: Eu3+ doped silica–titania–polydimethylsiloxane hybrid ORMOSILs were synthesized via a non-hydrolytic sol–gel route. The structural and thermal analyses of the samples confirmed that matrix structure remains unaffected by doping with different concentrations ions. Photoluminescence (PL) studies performed at 394 nm on imply they emit broad blue host emission characteristic red emissions simultaneously. Also, excited charge transfer (CT) band this existence an energy path from to ions Ti4+–O2−–Eu3+ bonds. phonon was estimated sideband (PSB) analysis results substantiated Raman analysis. Judd–Ofelt (JO) parameters also evaluated which give details about local surroundings in system these further used for predicting radiative properties 5D0 → 7F1,2,4 transitions Furthermore, quantum efficiency CIE co-ordinates it found ORMOSIL has intense pinkish 30.7%.