Eu(III) complex-doped PMMA having fast radiation rate and high emission quantum efficiency

Three Eu(III) ternary complexes, Eu(hfa-H)3(Phen), Eu(hfa-H)3(Bipy) and Eu(hfa-H)3(Bath) (hfa=hexafluoroacetylacetonate, Phen=1,10-phenanthroline, Bipy=2,2′-bipyridine, Bath=bathophenanthroline), were synthesized. Their luminescent properties were studied by incorporating deuterated Eu(III) complexes in a poly(methylmethacrylate) (PMMA) matrix, and the results indicated that luminescent PMMA including Eu(hfa-D)3(Bath) showed promising results for applications to novel organic Eu(III) devices, such as the high-power laser materials. Additionally, all the three Eu(III) complexes exhibited good thermostabilization.