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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 53, Iss. 3 — Jan. 20, 2014
  • pp: 447–452

Study of yellow luminescence of binary terbium complexes based on 3,3′,4,4′-biphthalic anhydride

Meijuan Lin, Xiaoping Wang, Qiang Tang, Qi An, Huijuan Zeng, and Qidan Ling  »View Author Affiliations


Applied Optics, Vol. 53, Issue 3, pp. 447-452 (2014)
http://dx.doi.org/10.1364/AO.53.000447


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Abstract

Three novel binary Tb(III) complexes (TbL2, TbL, and Tb2L; L=3,3,4,4-biphenyl tetracarboxylic ligand) were synthesized by changing the molar ratio of Tb(III) to 3,3,4,4-biphthalic anhydride (BPDA) (12, 11, and 21, respectively). IR spectra indicate that there are two coordination modes of the carboxylate ligands with Tb3+ ions in the complexes. Most of them are in bridging mode; the others are in chelating mode. These complexes all have good thermal stability. The photophysical properties of these complexes are studied in detail using UV absorption spectra, fluorescence spectra, and transient fluorescence spectra. The results indicate that the photoluminescence properties of the complexes depend strongly on the molar ratio of Tb(III) to BPDA. When the molar ratio of Tb(III) to BPDA is 11, complex TbL exhibits the strongest yellow light emission among the three Tb(III) complexes. However, complex Tb2L exhibits a weaker yellowish-green light emission when the molar ratio of Tb(III) to BPDA is 21. The phenomenon of the yellow emission from terbium complexes is rarely reported.

© 2014 Optical Society of America

OCIS Codes
(160.2540) Materials : Fluorescent and luminescent materials
(160.4760) Materials : Optical properties
(250.5230) Optoelectronics : Photoluminescence
(300.2140) Spectroscopy : Emission
(300.6280) Spectroscopy : Spectroscopy, fluorescence and luminescence

ToC Category:
Materials

History
Original Manuscript: September 4, 2013
Revised Manuscript: December 17, 2013
Manuscript Accepted: December 20, 2013
Published: January 16, 2014

Citation
Meijuan Lin, Xiaoping Wang, Qiang Tang, Qi An, Huijuan Zeng, and Qidan Ling, "Study of yellow luminescence of binary terbium complexes based on 3,3′,4,4′-biphthalic anhydride," Appl. Opt. 53, 447-452 (2014)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-53-3-447

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