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  • Title: Synthesis and characterization of Y(1-x) Eu(x) (TTA)3 (Phen) organic luminescent thin films.
    Author: Kalyani NT, Atram RG, Dhoble SJ.
    Journal: Luminescence; 2014 Sep; 29(6):674-8. PubMed ID: 24265233.
    Abstract:
    Yttrium is stoichiometrically doped into europium by mole percentage, during the synthesis of Y(1-x) Eu(x) (TTA)3 (Phen), using solution techniques (where x = 0.2, 0.4, 0.5, 0.6 and 0.8, TTA = thenoyltrifluoroacetone and Phen = 1,10-phenanthroline).These complexes were characterized using different techniques such as X-ray diffraction, thermogravimetric/differential thermal analysis, optical absorption and emission spectra. Thin films of the doped Eu-Y complexes were prepared on a glass substrate under a high vacuum of 10(-6) Torr. The photoluminescence spectra of these thin films were recorded by exciting the sample at a wavelength of 360 nm. The emission peak for all the synthesized complexes centered at 611 nm; maximum emission intensity was obtained from Y0.6 Eu0.4 (TTA)3 (Phen). The results proved that these doped complexes are more economical than pure Eu(TTA)3 (Phen) and are best suited as red emissive material for energy-efficient and eco-friendly organic light-emitting diodes and displays.
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