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.