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Synthesis and characterization of Y (1‐x) Eu (x) (TTA) 3 (Phen) organic luminescent thin films
Author(s) -
Kalyani N. Thejo,
Atram R. G.,
Dhoble S. J.
Publication year - 2014
Publication title -
luminescence
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.428
H-Index - 45
eISSN - 1522-7243
pISSN - 1522-7235
DOI - 10.1002/bio.2605
Subject(s) - europium , photoluminescence , analytical chemistry (journal) , thin film , luminescence , yttrium , doping , materials science , stoichiometry , thermogravimetric analysis , substrate (aquarium) , differential thermal analysis , chemistry , diffraction , optics , nanotechnology , optoelectronics , organic chemistry , oceanography , physics , geology , metallurgy , oxide
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 Y 0.6 Eu 0.4 (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. Copyright © 2013 John Wiley & Sons, Ltd.