Luminescence behavior of the Eu(TTFA)3 and TbSSA co-doped xerogel

Luminescence behavior of Eu(TTFA)₃ and TbSSA co-doped gel has been investigated. The excitation and emission spectra of the EuCl₃ and thenoyltrifluoroacetone co-doped gel appeared to exhibit intramolecular energy transfer from the coordinated thenoyltrifluoroacetonate to the europium ions, and the luminescence behavior of sulphosalicylic acid and TbCl₃ co-doped gel also indicated the synthesis of TbSSA in the gel. The luminescence behavior of x% Eu(TTFA)₃ and (1-x)% TbSSA (x=0-1) co-doped gel changed significantly with the ratio of Eu(TTFA)₃ and TbSSA. By adjusting the ratio of the Eu(TTFA)₃ and TbSSA in the gel, the luminescence of different colors which resulted from the mixture of the emission bands of Eu³⁺ ions and Tb³⁺ ions can be observed.