Journal
OPTICS COMMUNICATIONS
Volume 283, Issue 18, Pages 3441-3447Publisher
ELSEVIER
DOI: 10.1016/j.optcom.2010.05.017
Keywords
Lanthanide complex; Energy transfer; Aromatic carboxylic acid; Salicylic acid; 1 10-Phenanthroline; Antenna ligand; Samarium ion
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Funding
- CSIR (India)
- UGC (India)
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In the present work, dinuclear complexes of salicylic acid (Sal) and 1,10-phenanthroline (Phen) were synthesized with different concentrations of Samarium ion (Sm3+) in Poly Vinyl Alcohol (PVA) polymer films and their structural and spectroscopic properties were investigated. Judd-Ofelt theory has been employed to estimate the several radiative parameters for SmCl3 and Sm(Sal)(3)Phen complex in PVA polymer film which are in fairly agreement between the experimental and the theoretical values supporting the J-O theory. Photoluminescence properties of the complex have been studied on 355 nm and 400 nm excitations in steady state as well as in time domain. On the basis of the UV-Vis absorption, FT-IR absorption, excitation, emission spectra and decay curves, spectroscopic properties of these films were studied and the photophysics involved was explained in terms of energy transfer and the RE encapsulation effect. (C) 2010 Elsevier B.V. All rights reserved.
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