Rare earth doped β-diketone complexes as promising high-density optical recording materials for blue optoelectronics

Some kinds of rare earth β-diketone complexes with blue-violet light absorption edge were synthesized using the ligands of thenoyltrifluoroacctone (HTTA), 2, 2′-dipyridyl (BIPY) and different metal ions (Gd3+, Sm3+ and La3+). Their contents, structures and optoelectronic parameters were monitored by elemental analysis, MS, IR and UV spectra. The solubility of rare earth β-diketone complexes in 2, 2, 3, 3-tetrafluoro-1-propanol (TFP) and absorption properties of their films in the region 300–800 nm were measured. The influence on the difference of absorption maximum from rare earth β-diketone complexes to β-diketone ligand by different metal ions was studied. In addition, the thermal stability of rare earth β-diketone complexes was also reported.