Luminescent properties of rare earth complexes of Gd1−xEux(TTA)3Dipy in nano-TiO2

Some kinds of rare earth complexes were synthesized using the ligands of thenoyltrifluoroacetone (HTTA), 2, 2/-dipyridyl(Dipy) and different metal ions (Eu3+ and Gd3+). Their contents, structures and optoelectronic property were monitored by elemental analysis, DTA-TGA, IR and fluorescence spectroscopy. This result showed luminescence of Eu3+ complex was enhanced after doped with Gd3+ , the thermal stability of rare earth complexes was also reported. In addition, the organic–inorganic combined device ITO/PVK: Gd1−xEux(TTA)3Dipy: TiO2/Al was fabricated, the nano-TiO2 has been used in the luminescence layer to change the electroluminescence property of Gd1−xEux(TTA)3Dipy. We have monitored the spectra of Gd1−xEux(TTA)3Dipy with different ratios for spin-cast film r min−1. It was found that there was an efficient energy transfer process between the ligands and metal ions.