Fluorescence enhancement of dysprosium, europium and terbium using sodium benzoate-trioctylphosphine oxide-Triton X-100

Ligand-sensitized fluorescence of Eu3+ using naphthalene carboxylic acids as ligands

“…The fluorescence of these lanthanides has been shown to be enhanced by ligand sensitization with appropriately chosen ligands [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19]. In these experiments, the lanthanide ion is complexed to a ligand; the ligand is then optically excited, followed by an efficient energy transfer from the strongly absorbing ligand to the rather poorly absorbing lanthanide ion.…”

Sensitization of uranium fluorescence using 2,6-pyridinedicarboxylic acid: Application for the determination of uranium in the presence of lanthanides

“…Provided the energy transfer is efficient, this process provides for a more efficient excitation of the lanthanides than a direct excitation, resulting in enhanced fluorescence of the lanthanide. Typical organic ligands that have been used for sensitization are b-diketone and aromatic carboxylic acids [30][31][32][33][34][35][36][37][38][39][40].…”

Photoluminescence enhancement of Sm3+ in the Sm3+–salicylic acid–o-phenanthroline ternary composite

“…If the intramolecular energy transfer from the ligand to the lanthanide is efficient, the upper emitting level of the lanthanide is more efficiently pumped by this technique than by a direct excitation, resulting in an enhanced lanthanide fluorescence. It has been reported that aromatic carboxylic acids also serve as excellent ligands to sensitize the fluorescence of lanthanides efficiently [4][5][6][7].…”